{"id":2078,"date":"2025-05-13T22:09:10","date_gmt":"2025-05-13T14:09:10","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/2341\/?p=2078"},"modified":"2025-05-13T22:12:16","modified_gmt":"2025-05-13T14:12:16","slug":"ai%e7%ae%97%e6%95%b8%e5%ad%b8","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/2341\/2025\/05\/13\/ai%e7%ae%97%e6%95%b8%e5%ad%b8\/","title":{"rendered":"AI\u7b97\u6578\u5b78"},"content":{"rendered":"<p>\u540c\u4e8b\u554f\u4e86\u4e00\u984c<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-large wp-image-2079\" src=\"https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051301-1024x67.jpg\" alt=\"\" width=\"900\" height=\"59\" srcset=\"https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051301-1024x67.jpg 1024w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051301-300x20.jpg 300w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051301-768x51.jpg 768w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051301.jpg 1169w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<p>\u77e5\u9053\u8981\u627e\u8f14\u52a9\u7dda\uff0c\u4f46\u4e00\u6642\u6c92\u60f3\u5230\uff0c\u4e58\u6cd5\u516c\u5f0f\u3001\u7562\u6c0f\u5b9a\u7406\u3001\u5713\uff1f\u5f8c\u4f86\u7528 AI \u7684\u6df1\u5ea6\u601d\u8003\uff0c\u5728 2025\/05\/13 \u9019\u5929\u7528 Grok, DeepSeek \u90fd\u5931\u6557\uff0c\u6211\u7684\u6307\u5c0e\u8a9e\u90fd\u662f<\/p>\n<blockquote>\n<p class=\"query-text-line ng-star-inserted\">\u4e09\u89d2\u5f62\u4e2d\uff0cBC\u00b2 &#8211; AB\u00b2 = AC \u00d7 AB\u3002 \uff08\u9019\u662f\u9577\u5ea6\u5e73\u65b9\u76f8\u6e1b\u7b49\u65bc\u53e6\u5916\u5169\u500b\u908a\u9577\u76f8\u4e58\uff09<\/p>\n<p class=\"query-text-line ng-star-inserted\">\u5047\u8bbe\u8fd9\u4e2a\u65b9\u7a0b\u6210\u7acb\uff0c\u4e14\u89d2B=51\u5ea6\uff0c\u6c42\u89d2C\u3002<\/p>\n<p class=\"query-text-line ng-star-inserted\">\u9019\u662f\u570b\u4e2d\u6578\u5b78\u7684\u984c\u76ee\uff0c\u6c42\u89e3\uff0c\u4e26\u7528\u7e41\u9ad4\u4e2d\u6587\u56de\u7b54<\/p>\n<\/blockquote>\n<p>\u6700\u5f8c\u662f\u7528 Gemini \u7684 2.5 Pro \u6df1\u5ea6\u601d\u8003<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-large wp-image-2080\" src=\"https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051302-1024x513.jpg\" alt=\"\" width=\"900\" height=\"451\" srcset=\"https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051302-1024x513.jpg 1024w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051302-300x150.jpg 300w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051302-768x384.jpg 768w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051302-1536x769.jpg 1536w, https:\/\/2blog.ilc.edu.tw\/2341\/wp-content\/uploads\/sites\/450\/2025\/05\/2025051302.jpg 1772w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<p>\u96d6\u7136 Gemini AI \u7b54\u5c0d\u4e86\uff0c\u4f46\u5beb\u5f97\u5f88\u9577\uff0c\u4f46\u662f\u8001\u5e2b\u7684\u672c\u4e8b\u5c31\u662f\u80fd\u7c21\u5316\u8aaa\u660e\u4e4b ^^<\/p>\n<p>AI \u9019\u6a23\u5beb\uff1a<\/p>\n<p><\/p>\n<h1 data-sourcepos=\"1:1-1:124\">\u4e09\u89d2\u5f62\u908a\u89d2\u95dc\u4fc2\u554f\u984c\u89e3\u6790\uff1a\u5f9e <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord\"><span class=\"mord mathnormal\">B<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u6c42\u89e3 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span><\/h1>\n<p data-sourcepos=\"3:1-3:82\">\u672c\u5831\u544a\u65e8\u5728\u8a73\u7d30\u89e3\u6790\u4e00\u9053\u6d89\u53ca\u4e09\u89d2\u5f62\u908a\u9577\u8207\u89d2\u5ea6\u95dc\u4fc2\u7684\u5e7e\u4f55\u554f\u984c\u3002\u6211\u5011\u5c07\u900f\u904e\u4ee3\u6578\u689d\u4ef6\u7684\u8f49\u63db\u3001\u8f14\u52a9\u7dda\u7684\u5de7\u5999\u69cb\u9020\u3001\u76f8\u4f3c\u4e09\u89d2\u5f62\u7684\u8b49\u660e\u4ee5\u53ca\u89d2\u5ea6\u7684\u8a08\u7b97\uff0c\u4e00\u6b65\u6b65\u5f15\u5c0e\u8b80\u8005\u627e\u51fa\u672a\u77e5\u7684\u89d2\u5ea6\u3002<\/p>\n<h2 data-sourcepos=\"5:1-5:17\">\u7b2c\u4e00\u90e8\u5206\uff1a\u984c\u76ee\u7406\u89e3\u8207\u689d\u4ef6\u8f49\u5316<\/h2>\n<p data-sourcepos=\"7:1-7:42\">\u5728\u89e3\u6c7a\u4efb\u4f55\u5e7e\u4f55\u554f\u984c\u4e4b\u524d\uff0c\u9996\u8981\u4efb\u52d9\u662f\u6e05\u6670\u5730\u7406\u89e3\u984c\u76ee\u6240\u7d66\u4e88\u7684\u689d\u4ef6\u4ee5\u53ca\u6211\u5011\u9700\u8981\u9054\u6210\u7684\u76ee\u6a19\u3002<\/p>\n<h3 data-sourcepos=\"9:1-9:18\">1.1. \u984c\u76ee\u91cd\u8ff0\u8207\u5df2\u77e5\u689d\u4ef6<\/h3>\n<p data-sourcepos=\"11:1-11:83\">\u984c\u76ee\u7d66\u5b9a\u4e00\u500b\u4e09\u89d2\u5f62\uff0c\u6211\u5011\u7a31\u4e4b\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>\u3002\u95dc\u65bc\u9019\u500b\u4e09\u89d2\u5f62\uff0c\u6211\u5011\u5df2\u77e5\u4ee5\u4e0b\u5169\u500b\u689d\u4ef6\uff1a<\/p>\n<ol data-sourcepos=\"12:1-14:0\">\n<li data-sourcepos=\"12:1-12:141\">\u908a\u9577\u4e4b\u9593\u5b58\u5728\u4e00\u500b\u7279\u5b9a\u95dc\u4fc2\uff1a<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord\"><span class=\"mord mathnormal\">B<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span>\u3002\u9019\u88e1\u7684 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mpunct\">,<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mpunct\">,<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u5206\u5225\u4ee3\u8868\u4e09\u89d2\u5f62\u4e09\u908a\u7684\u9577\u5ea6\u3002<\/li>\n<li data-sourcepos=\"13:1-14:0\">\u5176\u4e2d\u4e00\u500b\u5167\u89d2\uff0c<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> (\u6216\u5beb\u4f5c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>) \u7684\u5ea6\u6578\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/li>\n<\/ol>\n<p data-sourcepos=\"15:1-15:115\">\u6211\u5011\u7684\u76ee\u6a19\u662f\uff1a\u6839\u64da\u9019\u4e9b\u689d\u4ef6\uff0c\u6c42\u51fa <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> (\u6216\u5beb\u4f5c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span>) \u7684\u5ea6\u6578\u3002<\/p>\n<h3 data-sourcepos=\"17:1-17:20\">1.2. \u4ee3\u6578\u689d\u4ef6\u7684\u5e7e\u4f55\u610f\u7fa9\u521d\u63a2<\/h3>\n<p data-sourcepos=\"19:1-19:122\">\u984c\u76ee\u7d66\u51fa\u7684\u908a\u9577\u95dc\u4fc2\u5f0f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord\"><span class=\"mord mathnormal\">B<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u662f\u4e00\u500b\u4ee3\u6578\u7b49\u5f0f\u3002\u70ba\u4e86\u5728\u5e7e\u4f55\u4e0a\u4f7f\u7528\u9019\u500b\u689d\u4ef6\uff0c\u6211\u5011\u901a\u5e38\u9700\u8981\u5c0d\u5176\u9032\u884c\u8b8a\u5f62\uff0c\u4ee5\u63ed\u793a\u5176\u53ef\u80fd\u860a\u542b\u7684\u5e7e\u4f55\u610f\u7fa9\u3002<\/p>\n<p data-sourcepos=\"21:1-22:62\">\u5c07\u539f\u59cb\u7b49\u5f0f\u79fb\u9805\uff0c\u53ef\u5f97\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord\"><span class=\"mord mathnormal\">B<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span><\/p>\n<p data-sourcepos=\"24:1-25:64\">\u9019\u500b\u5f0f\u5b50\u53ef\u4ee5\u9032\u4e00\u6b65\u6574\u7406\u3002\u6ce8\u610f\u5230\u53f3\u908a\u7684\u5169\u9805\u90fd\u542b\u6709\u56e0\u5b50 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span>\uff0c\u6211\u5011\u53ef\u4ee5\u63d0\u53d6\u516c\u56e0\u5b50 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span>\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/p>\n<p data-sourcepos=\"27:1-27:531\">\u9019\u500b\u8f49\u63db\u5f8c\u7684\u5f0f\u5b50 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span> \u975e\u5e38\u95dc\u9375\u3002\u5728\u5e7e\u4f55\u5b78\u4e2d\uff0c\u4e00\u500b\u908a\u9577\u7684\u5e73\u65b9\u7b49\u65bc\u53e6\u5916\u5169\u500b\u9577\u5ea6\u4e4b\u7a4d\uff08\u4f8b\u5982 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">x<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">y<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">z<\/span><\/span><\/span><\/span>\uff09\uff0c\u5e38\u5e38\u6697\u793a\u8457\u6bd4\u4f8b\u7dda\u6bb5\u7684\u5b58\u5728\uff0c\u9019\u8207\u76f8\u4f3c\u4e09\u89d2\u5f62\u7684\u6027\u8cea\u5bc6\u5207\u76f8\u95dc\u3002\u5177\u9ad4\u4f86\u8aaa\uff0c\u5982\u679c\u6211\u5011\u80fd\u5c07 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u9019\u500b\u300c\u548c\u300d\u7684\u9577\u5ea6\u5728\u5716\u5f62\u4e2d\u8868\u793a\u70ba\u4e00\u689d\u55ae\u7368\u7684\u7dda\u6bb5\uff0c\u90a3\u9ebc <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u5c31\u53ef\u80fd\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u8207\u9019\u689d\u65b0\u7dda\u6bb5\u7684\u6bd4\u4f8b\u4e2d\u9805\u3002\u9019\u7a2e\u5f62\u5f0f (<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><span class=\"mord\">\/<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><span class=\"mord\">\/<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u6216 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord\">\/<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><span class=\"mord\">\/<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span>) \u662f\u8b49\u660e\u4e09\u89d2\u5f62\u76f8\u4f3c\u7684\u91cd\u8981\u7dda\u7d22\uff0c\u7279\u5225\u662f\u7576\u6d89\u53ca\u5230\u5171\u7528\u89d2\u6642\uff0c\u53ef\u80fd\u9069\u7528\u300c\u5169\u908a\u6210\u6bd4\u4f8b\u4e14\u593e\u89d2\u76f8\u7b49\u300d(SAS) \u7684\u76f8\u4f3c\u5224\u5b9a\u6e96\u5247\u3002<\/p>\n<p data-sourcepos=\"29:1-29:48\">\u56e0\u6b64\uff0c\u63a5\u4e0b\u4f86\u7684\u601d\u8def\u4fbf\u662f\u5982\u4f55\u5229\u7528\u9019\u500b\u8f49\u63db\u5f8c\u7684\u4ee3\u6578\u95dc\u4fc2\uff0c\u900f\u904e\u5e7e\u4f55\u4f5c\u5716\u4f86\u5275\u9020\u51fa\u53ef\u4ee5\u61c9\u7528\u76f8\u4f3c\u7406\u8ad6\u7684\u689d\u4ef6\u3002<\/p>\n<h2 data-sourcepos=\"31:1-31:22\">\u7b2c\u4e8c\u90e8\u5206\uff1a\u8f14\u52a9\u7dda\u4f5c\u6cd5\u8207\u95dc\u9375\u5e7e\u4f55\u95dc\u4fc2\u5efa\u7acb<\/h2>\n<p data-sourcepos=\"33:1-33:150\">\u70ba\u4e86\u5c07\u4ee3\u6578\u689d\u4ef6 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span> \u4e2d\u7684 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span> \u9019\u4e00\u9805\u8f49\u5316\u70ba\u5716\u5f62\u4e2d\u4e00\u689d\u5be6\u969b\u7684\u7dda\u6bb5\u9577\uff0c\u6211\u5011\u9700\u8981\u5f15\u5165\u8f14\u52a9\u7dda\u3002<\/p>\n<h3 data-sourcepos=\"35:1-35:17\">2.1. \u8f14\u52a9\u7dda\u7684\u8a2d\u8a08\u601d\u8def<\/h3>\n<p data-sourcepos=\"37:1-37:535\">\u8f14\u52a9\u7dda\u7684\u4f5c\u6cd5\u4e26\u975e\u96a8\u610f\u731c\u6e2c\uff0c\u800c\u662f\u7dca\u5bc6\u570d\u7e5e\u8457\u6211\u5011\u5728\u7b2c\u4e00\u90e8\u5206\u5f97\u5230\u7684\u4ee3\u6578\u95dc\u4fc2 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span>\u3002\u6211\u5011\u7684\u76ee\u6a19\u662f\u69cb\u9020\u51fa\u4e00\u689d\u9577\u5ea6\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u7684\u7dda\u6bb5\uff0c\u4e26\u671f\u671b\u9019\u689d\u7dda\u6bb5\u80fd\u8207\u73fe\u6709\u908a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u5f62\u6210\u67d0\u7a2e\u6bd4\u4f8b\u95dc\u4fc2\uff0c\u9032\u800c\u5e6b\u52a9\u6211\u5011\u5efa\u7acb\u4e09\u89d2\u5f62\u4e4b\u9593\u7684\u76f8\u4f3c\u6027\u3002\u8003\u616e\u5230\u8868\u9054\u5f0f\u4e2d\u542b\u6709 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u7684\u548c\uff0c\u4e00\u500b\u81ea\u7136\u7684\u60f3\u6cd5\u662f\u5728\u67d0\u689d\u908a\u4e0a\u5ef6\u9577\u4e00\u6bb5\u9577\u5ea6\u7b49\u65bc\u53e6\u4e00\u689d\u908a\u3002\u7531\u65bc\u5df2\u77e5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span>\uff0c\u4e14 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u662f\u689d\u4ef6\u4e2d\u7684\u4e00\u500b\u4e58\u6578\uff0c\u5ef6\u9577 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u908a\u4f3c\u4e4e\u662f\u4e00\u500b\u6bd4\u8f03\u76f4\u63a5\u7684\u9078\u64c7\u3002<\/p>\n<h3 data-sourcepos=\"39:1-39:16\">2.2. \u8f14\u52a9\u7dda\u4f5c\u6cd5\u8a73\u8ff0<\/h3>\n<p data-sourcepos=\"41:1-42:253\">\u6211\u5011\u63a1\u7528\u4ee5\u4e0b\u4f5c\u6cd5\u4f86\u69cb\u9020\u8f14\u52a9\u7dda\uff1a <strong>\u4f5c\u6cd5\uff1a<\/strong> \u5ef6\u9577\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u81f3\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u4f7f\u5f97 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\u3002\u7136\u5f8c\uff0c\u9023\u63a5\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u548c\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u5f62\u6210\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002<\/p>\n<p data-sourcepos=\"44:1-44:642\">\uff08\u60f3\u50cf\u4e00\u4e0b\u5716\u5f62\uff1a\u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d\uff0c\u6211\u5011\u5f9e\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u51fa\u767c\uff0c\u6cbf\u8457\u5c04\u7dda <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u7684\u53cd\u65b9\u5411\uff08\u5373\u9060\u96e2\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u65b9\u5411\uff09\u756b\u4e00\u689d\u5ef6\u9577\u7dda\uff0c\u5728\u9019\u689d\u5ef6\u9577\u7dda\u4e0a\u53d6\u4e00\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u4f7f\u5f97 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u9ede\u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e4b\u9593\uff0c\u4e26\u4e14\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u9577\u5ea6\u7b49\u65bc\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u7684\u9577\u5ea6\u3002\u7136\u5f8c\u9023\u63a5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u9ede\u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u9ede\uff0c\u9019\u6a23\u5c31\u7522\u751f\u4e86\u65b0\u7684\u4e09\u89d2\u5f62 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>\u3002\uff09<\/p>\n<h3 data-sourcepos=\"46:1-46:21\">2.3. \u8f14\u52a9\u7dda\u5e36\u4f86\u7684\u76f4\u63a5\u5e7e\u4f55\u7d50\u679c<\/h3>\n<p data-sourcepos=\"48:1-48:24\">\u9019\u689d\u8f14\u52a9\u7dda\u7684\u5f15\u5165\uff0c\u7acb\u5373\u5e36\u4f86\u4e86\u5e7e\u500b\u91cd\u8981\u7684\u5e7e\u4f55\u7d50\u679c\uff1a<\/p>\n<ol data-sourcepos=\"49:1-56:0\">\n<li data-sourcepos=\"49:1-49:299\"><strong>\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u9577\u5ea6\uff1a<\/strong> \u6839\u64da\u6211\u5011\u7684\u4f5c\u6cd5\uff0c\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u9577\u5ea6\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002\u7531\u65bc\u6211\u5011\u7279\u610f\u4f7f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u6240\u4ee5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> (\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>)\u3002<\/li>\n<li data-sourcepos=\"50:1-54:34\"><strong>\u4ee3\u6578\u689d\u4ef6\u7684\u9032\u4e00\u6b65\u8f49\u5316\uff1a<\/strong> \u73fe\u5728\uff0c\u6211\u5011\u53ef\u4ee5\u5c07 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u4ee3\u56de\u5230\u7b2c\u4e00\u90e8\u5206\u6574\u7406\u5f97\u5230\u7684\u5f0f\u5b50 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span> \u4e2d\u3002\u9019\u6a23\uff0c\u689d\u4ef6\u5c31\u8b8a\u6210\u4e86\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u9019\u500b\u65b0\u7684\u7b49\u5f0f\u975e\u5e38\u91cd\u8981\u3002\u5b83\u53ef\u4ee5\u6539\u5beb\u6210\u6bd4\u4f8b\u5f0f\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BCx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">Dx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u9019\u500b\u6bd4\u4f8b\u5f0f\u6b63\u662f\u6211\u5011\u671f\u5f85\u7684\u3001\u80fd\u5920\u7528\u65bc\u8b49\u660e\u4e09\u89d2\u5f62\u76f8\u4f3c\u7684\u908a\u9577\u95dc\u4fc2\u3002<\/li>\n<li data-sourcepos=\"55:1-56:0\"><strong>\u7b49\u8170\u4e09\u89d2\u5f62\u7684\u51fa\u73fe\uff1a<\/strong> \u7531\u65bc\u4f5c\u5716\u6642\u6211\u5011\u898f\u5b9a\u4e86 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u6240\u4ee5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u662f\u4e00\u500b\u7b49\u8170\u4e09\u89d2\u5f62\uff0c\u5176\u4e2d <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u662f\u76f8\u7b49\u7684\u8170\u3002<\/li>\n<\/ol>\n<p data-sourcepos=\"57:1-57:312\">\u8f14\u52a9\u7dda\u7684\u5de7\u5999\u4e4b\u8655\u5728\u65bc\u5b83\u540c\u6642\u9054\u6210\u4e86\u5169\u500b\u76ee\u7684\uff1a\u4e00\u662f\u5c07\u4ee3\u6578\u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span> \u8f49\u5316\u70ba\u5716\u5f62\u4e2d\u7684\u55ae\u4e00\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u4f7f\u5f97\u4ee3\u6578\u689d\u4ef6 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u66f4\u6613\u65bc\u5e7e\u4f55\u89e3\u91cb\uff1b\u4e8c\u662f\u69cb\u9020\u4e86\u4e00\u500b\u7b49\u8170 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u7b49\u8170\u4e09\u89d2\u5f62\u7684\u6027\u8cea\uff08\u4f8b\u5982\u5169\u5e95\u89d2\u76f8\u7b49\uff09\u5c07\u5728\u5f8c\u7e8c\u6c42\u89e3\u89d2\u5ea6\u6642\u767c\u63ee\u95dc\u9375\u4f5c\u7528\u3002\u9019\u5169\u500b\u7d50\u679c\u4e26\u975e\u5b64\u7acb\uff0c\u800c\u662f\u76f8\u4e92\u95dc\u806f\uff0c\u5171\u540c\u5f15\u5c0e\u6211\u5011\u8d70\u5411\u554f\u984c\u7684\u89e3\u6c7a\u3002<\/p>\n<h2 data-sourcepos=\"59:1-59:16\">\u7b2c\u4e09\u90e8\u5206\uff1a\u4e09\u89d2\u5f62\u76f8\u4f3c\u7684\u8b49\u660e<\/h2>\n<p data-sourcepos=\"61:1-61:29\">\u6709\u4e86\u8f14\u52a9\u7dda\u5e36\u4f86\u7684\u6bd4\u4f8b\u95dc\u4fc2\uff0c\u6211\u5011\u73fe\u5728\u53ef\u4ee5\u5617\u8a66\u8b49\u660e\u4e09\u89d2\u5f62\u76f8\u4f3c\u3002<\/p>\n<h3 data-sourcepos=\"63:1-63:18\">3.1. \u5c0b\u627e\u8b49\u660e\u76f8\u4f3c\u7684\u689d\u4ef6<\/h3>\n<p data-sourcepos=\"65:1-65:325\">\u6211\u5011\u7684\u76ee\u6a19\u662f\u8b49\u660e <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u8207\u5305\u542b\u65b0\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u67d0\u500b\u4e09\u89d2\u5f62\u76f8\u4f3c\u3002\u5f9e\u6bd4\u4f8b\u5f0f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BCx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">Dx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u548c\u5716\u5f62\u7d50\u69cb\u4f86\u770b\uff0c\u6700\u6709\u53ef\u80fd\u8207 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u76f8\u4f3c\u7684\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002\u8b93\u6211\u5011\u4f86\u6aa2\u9a57\u8b49\u660e\u9019\u5169\u500b\u4e09\u89d2\u5f62\u76f8\u4f3c\u6240\u9700\u7684\u689d\u4ef6\uff1a<\/p>\n<ul data-sourcepos=\"66:1-69:0\">\n<li data-sourcepos=\"66:1-66:271\"><strong>\u516c\u5171\u89d2\uff1a<\/strong> \u89c0\u5bdf <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u5b83\u5011\u5171\u7528\u4e00\u500b\u89d2\uff0c\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> (\u4e5f\u5c31\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u8207 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u662f\u540c\u4e00\u500b\u89d2)\u3002<\/li>\n<li data-sourcepos=\"67:1-69:0\"><strong>\u593e\u516c\u5171\u89d2\u7684\u5169\u908a\u662f\u5426\u6210\u6bd4\u4f8b\uff1a<\/strong> \u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d\uff0c\u593e <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u5169\u908a\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>\u3002\u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e2d\uff0c\u593e <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u5169\u908a\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">CB<\/span><\/span><\/span><\/span> (\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>) \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002 \u6211\u5011\u5df2\u7d93\u5f9e\u689d\u4ef6 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<sup><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u63a8\u5c0e\u51fa\u4e86\u6bd4\u4f8b\u5f0f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BCx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">Dx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/li>\n<\/ul>\n<h3 data-sourcepos=\"70:1-70:22\">3.2. \u904b\u7528SAS\u76f8\u4f3c\u6e96\u5247\u9032\u884c\u8b49\u660e<\/h3>\n<p data-sourcepos=\"72:1-73:102\">\u73fe\u5728\u6211\u5011\u5177\u5099\u4e86\u8b49\u660e <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u8207 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u76f8\u4f3c\u7684\u6240\u6709\u689d\u4ef6\uff1a \u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e2d\uff1a<\/p>\n<ol data-sourcepos=\"74:1-76:0\">\n<li data-sourcepos=\"74:1-74:70\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> (\u516c\u5171\u89d2)\u3002<\/li>\n<li data-sourcepos=\"75:1-76:0\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">CBx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">Dx<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> (\u5df2\u8b49\uff0c\u6ce8\u610f\u9019\u88e1 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">CB<\/span><\/span><\/span><\/span> \u5373\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>\u3002\u6b64\u6bd4\u4f8b\u8868\u793a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u4e00\u689d\u593e\u908a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u8207 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e2d <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u5c0d\u61c9\u593e\u908a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">CB<\/span><\/span><\/span><\/span> \u6210\u6bd4\u4f8b\uff0c\u540c\u6642 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u53e6\u4e00\u689d\u593e\u908a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u8207 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e2d <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u7684\u5c0d\u61c9\u593e\u908a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u6210\u6bd4\u4f8b)\u3002<\/li>\n<\/ol>\n<p data-sourcepos=\"77:1-78:68\">\u6839\u64da\u300c\u5169\u908a\u6210\u6bd4\u4f8b\u4e14\u5176\u593e\u89d2\u76f8\u7b49\u300d\u7684\u76f8\u4f3c\u5224\u5b9a\u6e96\u5247 (SAS)\uff0c\u6211\u5011\u53ef\u4ee5\u65b7\u5b9a\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mrel\">\u223c<\/span><\/span><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span><\/p>\n<p data-sourcepos=\"80:1-80:469\">\u5728\u8b49\u660e\u4e09\u89d2\u5f62\u76f8\u4f3c\u6642\uff0c\u6b63\u78ba\u8b58\u5225\u5c0d\u61c9\u9802\u9ede\u81f3\u95dc\u91cd\u8981\u3002\u5f9e\u516c\u5171\u89d2 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u548c\u6bd4\u4f8b\u5f0f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">D<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> (\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><span class=\"mord text mtight\">\u00a0(<span class=\"mord cjk_fallback mtight\">\u9577\u908a\u65bc<\/span>\u00a0<\/span>\u25b3<span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">BC<\/span><span class=\"mord text mtight\">\u00a0<span class=\"mord cjk_fallback mtight\">\u593e<\/span>\u00a0<\/span>\u2220<span class=\"mord mathnormal mtight\">B<\/span><span class=\"mclose mtight\">)<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord text mtight\">\u00a0(<span class=\"mord cjk_fallback mtight\">\u77ed\u908a\u65bc<\/span>\u00a0<\/span>\u25b3<span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">BC<\/span><span class=\"mord text mtight\">\u00a0<span class=\"mord cjk_fallback mtight\">\u593e<\/span>\u00a0<\/span>\u2220<span class=\"mord mathnormal mtight\">B<\/span><span class=\"mclose mtight\">)<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">D<\/span><span class=\"mord text mtight\">\u00a0(<span class=\"mord cjk_fallback mtight\">\u9577\u908a\u65bc<\/span>\u00a0<\/span>\u25b3<span class=\"mord mathnormal mtight\">CB<\/span><span class=\"mord mathnormal mtight\">D<\/span><span class=\"mord text mtight\">\u00a0<span class=\"mord cjk_fallback mtight\">\u593e<\/span>\u00a0<\/span>\u2220<span class=\"mord mathnormal mtight\">B<\/span><span class=\"mclose mtight\">)<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">CB<\/span><span class=\"mord text mtight\">\u00a0(<span class=\"mord cjk_fallback mtight\">\u77ed\u908a\u65bc<\/span>\u00a0<\/span>\u25b3<span class=\"mord mathnormal mtight\">CB<\/span><span class=\"mord mathnormal mtight\">D<\/span><span class=\"mord text mtight\">\u00a0<span class=\"mord cjk_fallback mtight\">\u593e<\/span>\u00a0<\/span>\u2220<span class=\"mord mathnormal mtight\">B<\/span><span class=\"mclose mtight\">)<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) \u53ef\u4ee5\u770b\u51fa\uff1a<\/p>\n<ul data-sourcepos=\"81:1-85:0\">\n<li data-sourcepos=\"81:1-81:181\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u7684\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\u3002<\/li>\n<li data-sourcepos=\"82:1-82:181\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u7684\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span>\u3002<\/li>\n<li data-sourcepos=\"83:1-85:0\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u7684\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u7684\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002 \u56e0\u6b64\uff0c\u76f8\u4f3c\u95dc\u4fc2\u7684\u9802\u9ede\u5c0d\u61c9\u9806\u5e8f\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">\u2194<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>, <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mrel\">\u2194<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span>, <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">\u2194<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002\u9019\u500b\u5c0d\u61c9\u95dc\u4fc2\u6c7a\u5b9a\u4e86\u5f8c\u7e8c\u5229\u7528\u76f8\u4f3c\u6027\u8cea\u63a8\u5c0e\u89d2\u76f8\u7b49\u95dc\u4fc2\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 data-sourcepos=\"86:1-86:27\">\u7b2c\u56db\u90e8\u5206\uff1a\u904b\u7528\u76f8\u4f3c\u4e09\u89d2\u5f62\u8207\u7b49\u8170\u4e09\u89d2\u5f62\u6027\u8cea\u6c42\u89e3\u89d2\u5ea6<\/h2>\n<p data-sourcepos=\"88:1-88:57\">\u8b49\u660e\u4e86\u4e09\u89d2\u5f62\u76f8\u4f3c\u4e4b\u5f8c\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5229\u7528\u76f8\u4f3c\u4e09\u89d2\u5f62\u7684\u6027\u8cea\uff08\u5c0d\u61c9\u89d2\u76f8\u7b49\uff09\u4ee5\u53ca\u524d\u9762\u69cb\u9020\u7684\u7b49\u8170\u4e09\u89d2\u5f62\u7684\u6027\u8cea\u4f86\u6c42\u89e3\u672a\u77e5\u7684\u89d2\u5ea6\u3002<\/p>\n<h3 data-sourcepos=\"90:1-90:24\">4.1. \u5229\u7528\u76f8\u4f3c\u4e09\u89d2\u5f62\u6027\u8cea\u5f97\u5230\u89d2\u5ea6\u95dc\u4fc2<\/h3>\n<p data-sourcepos=\"92:1-92:92\">\u7531 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mrel\">\u223c<\/span><\/span><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u6839\u64da\u76f8\u4f3c\u4e09\u89d2\u5f62\u5c0d\u61c9\u89d2\u76f8\u7b49\u7684\u6027\u8cea\uff0c\u6211\u5011\u5f97\u5230\uff1a<\/p>\n<ol data-sourcepos=\"93:1-95:0\">\n<li data-sourcepos=\"93:1-93:217\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> (\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>)<\/li>\n<li data-sourcepos=\"94:1-95:0\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> (\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u9802\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u5c0d\u61c9 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>)<\/li>\n<\/ol>\n<p data-sourcepos=\"96:1-97:81\">\u6211\u5011\u8a2d\u984c\u76ee\u6240\u6c42\u7684 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span>\u3002 \u6839\u64da\u7b2c\u4e8c\u689d\u5c0d\u61c9\u95dc\u4fc2\uff0c<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span>\u3002<\/p>\n<h3 data-sourcepos=\"99:1-99:18\">4.2. \u5229\u7528\u7b49\u8170\u4e09\u89d2\u5f62\u6027\u8cea<\/h3>\n<p data-sourcepos=\"101:1-105:122\">\u56de\u9867\u7b2c\u4e8c\u90e8\u5206\u7684\u8f14\u52a9\u7dda\u4f5c\u6cd5\uff0c\u6211\u5011\u69cb\u9020\u4e86 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u4e14 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\u3002\u56e0\u6b64\uff0c<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u662f\u4e00\u500b\u7b49\u8170\u4e09\u89d2\u5f62\u3002 \u5728\u7b49\u8170 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u4e2d\uff0c\u5169\u5e95\u89d2\u76f8\u7b49\uff0c\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002 \u6ce8\u610f\u5230 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u8207\u6211\u5011\u525b\u624d\u5f97\u5230\u7684 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u662f\u540c\u4e00\u500b\u89d2 (\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mpunct\">,<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mpunct\">,<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u5171\u7dda\uff0c\u6240\u4ee5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u6307\u7684\u662f\u540c\u4e00\u500b\u89d2\uff0c\u5176\u9802\u9ede\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>)\u3002 \u56e0\u6b64\uff0c<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span>\u3002 \u7531\u65bc <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u6240\u4ee5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span>\u3002<\/p>\n<h3 data-sourcepos=\"107:1-107:20\">4.3. \u5efa\u7acb\u89d2\u5ea6\u4e4b\u9593\u7684\u4ee3\u6578\u65b9\u7a0b<\/h3>\n<p data-sourcepos=\"109:1-112:79\">\u73fe\u5728\u6211\u5011\u4f86\u5206\u6790 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002\u5f9e\u5716\u5f62\u4e0a\u770b\uff08\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u5728\u7dda\u6bb5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e0a\uff0c\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u4e0d\u5728\u76f4\u7dda <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4e0a\uff09\uff0c\u89d2 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u662f\u7531 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u76f8\u52a0\u800c\u6210\u7684\u3002 \u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002 \u5c07\u6211\u5011\u5df2\u8a2d\u548c\u5df2\u63a8\u5c0e\u7684\u89d2\u5ea6\u4ee3\u5165\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span>\u3002<\/p>\n<p data-sourcepos=\"114:1-116:213\">\u518d\u6839\u64da\u76f8\u4f3c\u4e09\u89d2\u5f62\u7684\u6027\u8cea <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u6211\u5011\u53ef\u4ee5\u5f97\u5230\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span>\u3002 \u9019\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u95dc\u4fc2\uff1a<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d\u7684 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u7684\u5ea6\u6578\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u5ea6\u6578\u7684\u5169\u500d\u3002\u9019\u500b\u95dc\u4fc2\u7684\u63a8\u5c0e\uff0c\u5de7\u5999\u5730\u7d50\u5408\u4e86\u76f8\u4f3c\u4e09\u89d2\u5f62\u7684\u5c0d\u61c9\u89d2\u76f8\u7b49\u4ee5\u53ca\u7b49\u8170\u4e09\u89d2\u5f62\u7684\u5e95\u89d2\u76f8\u7b49\u7b49\u6027\u8cea\uff0c\u662f\u89e3\u6c7a\u672c\u984c\u7684\u95dc\u9375\u7a81\u7834\u9ede\u3002<\/p>\n<h3 data-sourcepos=\"118:1-118:21\">4.4. \u904b\u7528\u4e09\u89d2\u5f62\u5167\u89d2\u548c\u5b9a\u7406\u6c42\u89e3<\/h3>\n<p data-sourcepos=\"120:1-122:88\">\u73fe\u5728\u6211\u5011\u56de\u5230 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span>\u3002\u6211\u5011\u5df2\u7d93\u7528 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span> \u8868\u793a\u4e86 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u548c <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u4e26\u4e14\u5df2\u77e5 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002 \u6839\u64da\u4e09\u89d2\u5f62\u5167\u89d2\u548c\u5b9a\u7406\uff0c<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u7684\u4e09\u500b\u5167\u89d2\u4e4b\u548c\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-sourcepos=\"124:1-125:79\">\u5c07\u5df2\u77e5\u7684\u89d2\u5ea6\u548c\u7528 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span> \u8868\u793a\u7684\u89d2\u5ea6\u4ee3\u5165\u4e0a\u5f0f\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-sourcepos=\"127:1-132:53\">\u9019\u662f\u4e00\u500b\u95dc\u65bc <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><\/span><\/span><\/span> \u7684\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u5f0f\u3002\u89e3\u9019\u500b\u65b9\u7a0b\u5f0f\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">3<\/span><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">3<\/span><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">3<\/span><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">12<\/span><span class=\"mord\">9<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">3<\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">129<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"sizing reset-size3 size1 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-sourcepos=\"134:1-134:153\">\u56e0\u6b64\uff0c\u6211\u5011\u6c42\u5f97 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> (\u5373\u984c\u76ee\u6240\u6c42\u7684 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>) \u7684\u5ea6\u6578\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/p>\n<p data-sourcepos=\"136:1-138:224\">\u6211\u5011\u53ef\u4ee5\u9032\u4e00\u6b65\u9a57\u7b97 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u7684\u5ea6\u6578\uff1a <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mord\">6<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002 \u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d\uff0c\u4e09\u500b\u89d2\u5206\u5225\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mord\">6<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002\u5b83\u5011\u7684\u548c\u662f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mord\">6<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\uff0c\u7b26\u5408\u4e09\u89d2\u5f62\u5167\u89d2\u548c\u5b9a\u7406\u3002<\/p>\n<h2 data-sourcepos=\"140:1-140:17\">\u7b2c\u4e94\u90e8\u5206\uff1a\u6700\u7d42\u7b54\u6848\u8207\u89e3\u984c\u7e3d\u7d50<\/h2>\n<p data-sourcepos=\"142:1-142:36\">\u7d93\u904e\u4e0a\u8ff0\u8a73\u7d30\u7684\u63a8\u5c0e\u8207\u8a08\u7b97\uff0c\u6211\u5011\u73fe\u5728\u53ef\u4ee5\u7d66\u51fa\u554f\u984c\u7684\u7b54\u6848\u4e26\u56de\u9867\u6574\u500b\u89e3\u984c\u904e\u7a0b\u3002<\/p>\n<h3 data-sourcepos=\"144:1-144:13\">5.1. \u6700\u7d42\u7b54\u6848<\/h3>\n<p data-sourcepos=\"146:1-146:318\">\u5728\u7d66\u5b9a\u7684\u689d\u4ef6 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord\"><span class=\"mord mathnormal\">B<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u4e14 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u4e0b\uff0c\u4e09\u89d2\u5f62 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d\u89d2 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> (\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span>) \u7684\u5ea6\u6578\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathbf\">4<\/span><span class=\"mord mathbf\">3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/p>\n<h3 data-sourcepos=\"148:1-148:15\">5.2. \u89e3\u984c\u6b65\u9a5f\u56de\u9867<\/h3>\n<p data-sourcepos=\"150:1-150:19\">\u672c\u554f\u984c\u7684\u89e3\u6c7a\u4e3b\u8981\u4f9d\u8cf4\u4ee5\u4e0b\u5e7e\u500b\u95dc\u9375\u6b65\u9a5f\uff1a<\/p>\n<ol data-sourcepos=\"151:1-156:0\">\n<li data-sourcepos=\"151:1-151:173\"><strong>\u4ee3\u6578\u689d\u4ef6\u8f49\u5316\uff1a<\/strong> \u5c07\u539f\u59cb\u7684\u908a\u9577\u95dc\u4fc2\u5f0f <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord\"><span class=\"mord mathnormal\">B<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u8b8a\u5f62\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span>\uff0c\u5f9e\u800c\u63ed\u793a\u51fa\u53ef\u80fd\u7684\u6bd4\u4f8b\u4e2d\u9805\u95dc\u4fc2\u3002<\/li>\n<li data-sourcepos=\"152:1-152:402\"><strong>\u8f14\u52a9\u7dda\u69cb\u9020\uff1a<\/strong> \u5de7\u5999\u5730\u5ef6\u9577 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u81f3\u9ede <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span> \u4f7f\u5f97 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u9019\u6a23\u4e00\u65b9\u9762\u4f7f\u5f97 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\uff0c\u5c07\u4ee3\u6578\u548c\u8f49\u5316\u70ba\u5e7e\u4f55\u7dda\u6bb5\u9577\uff1b\u53e6\u4e00\u65b9\u9762\u69cb\u9020\u4e86\u7b49\u8170 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>\u3002\u689d\u4ef6\u96a8\u4e4b\u8f49\u5316\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\uff0c\u5373 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">A<\/span><span class=\"mord mathnormal mtight\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">B<\/span><span class=\"mord mathnormal mtight\">D<\/span><\/span><\/span><\/span><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">BC<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/li>\n<li data-sourcepos=\"153:1-153:158\"><strong>\u8b49\u660e\u4e09\u89d2\u5f62\u76f8\u4f3c\uff1a<\/strong> \u5229\u7528\u516c\u5171\u89d2 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><\/span><\/span><\/span> \u548c\u4e0a\u8ff0\u6bd4\u4f8b\u95dc\u4fc2\uff0c\u6839\u64da SAS \u76f8\u4f3c\u6e96\u5247\u8b49\u660e\u4e86 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mrel\">\u223c<\/span><\/span><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">CB<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>\u3002<\/li>\n<li data-sourcepos=\"154:1-154:341\"><strong>\u89d2\u5ea6\u95dc\u4fc2\u63a8\u5c0e\uff1a<\/strong> \u904b\u7528\u76f8\u4f3c\u4e09\u89d2\u5f62\u5c0d\u61c9\u89d2\u76f8\u7b49\u7684\u6027\u8cea (<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span>, <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>) \u548c\u7b49\u8170 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> \u7684\u6027\u8cea (<span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">D<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">D<\/span><\/span><\/span><\/span>)\uff0c\u9010\u6b65\u63a8\u5c0e\u5f97\u51fa <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span>\u3002<\/li>\n<li data-sourcepos=\"155:1-156:0\"><strong>\u5167\u89d2\u548c\u5b9a\u7406\u6c42\u89e3\uff1a<\/strong> \u5728 <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u25b3<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> \u4e2d\uff0c\u5229\u7528\u4e09\u89d2\u5f62\u5167\u89d2\u548c\u70ba <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u7684\u5b9a\u7406\uff0c\u5efa\u7acb\u95dc\u65bc <span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> \u7684\u65b9\u7a0b\u4e26\u89e3\u51fa\u5176\u5ea6\u6578\u3002<\/li>\n<\/ol>\n<h3 data-sourcepos=\"157:1-157:18\">5.3. \u95dc\u9375\u6d1e\u5bdf\u8207\u5b78\u7fd2\u555f\u793a<\/h3>\n<p data-sourcepos=\"159:1-159:103\">\u672c\u984c\u7684\u89e3\u6c7a\u904e\u7a0b\u9ad4\u73fe\u4e86\u6578\u5b78\u4e2d\u300c\u5f62\u6578\u7d50\u5408\u300d\u7684\u91cd\u8981\u601d\u60f3\u3002\u4e00\u500b\u770b\u4f3c\u7d14\u7cb9\u7684\u4ee3\u6578\u689d\u4ef6\uff0c\u901a\u904e\u5de7\u5999\u7684\u5e7e\u4f55\u69cb\u9020\uff0c\u88ab\u8ce6\u4e88\u4e86\u76f4\u89c0\u7684\u5e7e\u4f55\u610f\u7fa9\uff0c\u9032\u800c\u8f49\u5316\u70ba\u53ef\u4ee5\u5229\u7528\u6a19\u6e96\u5e7e\u4f55\u5b9a\u7406\uff08\u5982\u76f8\u4f3c\u4e09\u89d2\u5f62\u3001\u7b49\u8170\u4e09\u89d2\u5f62\u6027\u8cea\u3001\u5167\u89d2\u548c\u5b9a\u7406\uff09\u4f86\u89e3\u6c7a\u7684\u554f\u984c\u3002<\/p>\n<ul data-sourcepos=\"160:1-163:0\">\n<li data-sourcepos=\"160:1-160:61\"><strong>\u4ee3\u6578\u8207\u5e7e\u4f55\u7684\u8f49\u5316\uff1a<\/strong> \u5b78\u6703\u5c07\u4ee3\u6578\u8868\u9054\u5f0f\u8207\u5e7e\u4f55\u5716\u5f62\u53ca\u6027\u8cea\uff08\u5982\u6bd4\u4f8b\u7dda\u6bb5\u3001\u76f8\u4f3c\u95dc\u4fc2\uff09\u76f8\u806f\u7e6b\uff0c\u662f\u63d0\u5347\u89e3\u984c\u80fd\u529b\u7684\u95dc\u9375\u3002<\/li>\n<li data-sourcepos=\"161:1-161:76\"><strong>\u8f14\u52a9\u7dda\u7684\u4f5c\u7528\uff1a<\/strong> \u8f14\u52a9\u7dda\u5728\u89e3\u6c7a\u8907\u96dc\u5e7e\u4f55\u554f\u984c\u4e2d\u626e\u6f14\u8457\u300c\u5316\u7e41\u70ba\u7c21\u300d\u3001\u300c\u5275\u9020\u689d\u4ef6\u300d\u7684\u89d2\u8272\u3002\u672c\u984c\u4e2d\u8f14\u52a9\u7dda\u7684\u8a2d\u8a08\u7dca\u6263\u4ee3\u6578\u689d\u4ef6\u7684\u7279\u9ede\uff0c\u662f\u89e3\u984c\u7684\u7a81\u7834\u53e3\u3002<\/li>\n<li data-sourcepos=\"162:1-163:0\"><strong>\u57fa\u672c\u6027\u8cea\u7684\u61c9\u7528\uff1a<\/strong> \u719f\u7df4\u638c\u63e1\u4e26\u9748\u6d3b\u904b\u7528\u76f8\u4f3c\u4e09\u89d2\u5f62\u7684\u5224\u5b9a\u8207\u6027\u8cea\u3001\u7b49\u8170\u4e09\u89d2\u5f62\u7684\u6027\u8cea\u4ee5\u53ca\u4e09\u89d2\u5f62\u5167\u89d2\u548c\u5b9a\u7406\uff0c\u662f\u89e3\u6c7a\u5404\u985e\u5e7e\u4f55\u8a08\u7b97\u554f\u984c\u7684\u57fa\u790e\u3002<\/li>\n<\/ul>\n<p data-sourcepos=\"164:1-164:120\">\u7576\u9047\u5230\u5305\u542b\u8907\u96dc\u4ee3\u6578\u689d\u4ef6\u7684\u5e7e\u4f55\u984c\u76ee\u6642\uff0c\u4e0d\u59a8\u5617\u8a66\u601d\u8003\u9019\u500b\u4ee3\u6578\u689d\u4ef6\u80cc\u5f8c\u53ef\u80fd\u96b1\u85cf\u7684\u5e7e\u4f55\u6a21\u578b\u6216\u610f\u7fa9\uff0c\u4f8b\u5982\u5b83\u662f\u5426\u6697\u793a\u4e86\u67d0\u4e9b\u7dda\u6bb5\u6210\u6bd4\u4f8b\uff0c\u6216\u8005\u662f\u5426\u53ef\u4ee5\u901a\u904e\u4f5c\u5716\u5c07\u5176\u8f49\u5316\u70ba\u66f4\u6613\u65bc\u8655\u7406\u7684\u5e7e\u4f55\u95dc\u4fc2\u3002\u9019\u7a2e\u63a2\u7a76\u6027\u7684\u601d\u8003\u65b9\u5f0f\u6709\u52a9\u65bc\u57f9\u990a\u6578\u5b78\u7684\u61c9\u8b8a\u80fd\u529b\u548c\u89e3\u6c7a\u8907\u96dc\u554f\u984c\u7684\u80fd\u529b\u3002<\/p>\n<h3 data-sourcepos=\"166:1-166:13\">5.4. \u89d2\u5ea6\u7e3d\u7d50<\/h3>\n<p data-sourcepos=\"168:1-168:25\">\u70ba\u4e86\u66f4\u6e05\u6670\u5730\u5c55\u793a\u672c\u984c\u4e2d\u6d89\u53ca\u7684\u5404\u500b\u89d2\u5ea6\uff0c\u8332\u5217\u8868\u5982\u4e0b\uff1a<\/p>\n<div class=\"horizontal-scroll-wrapper\">\n<div class=\"table-block-component\">\n<div class=\"table-block has-export-button\">\n<div class=\"table-content not-end-of-paragraph\">\n<table data-sourcepos=\"170:1-174:105\">\n<tbody>\n<tr data-sourcepos=\"170:1-170:15\">\n<td><strong>\u89d2<\/strong><\/td>\n<td><strong>\u985e\u578b<\/strong><\/td>\n<td><strong>\u5ea6\u6578<\/strong><\/td>\n<\/tr>\n<tr data-sourcepos=\"172:1-172:105\">\n<td align=\"left\" data-sourcepos=\"172:1-172:51\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">BC<\/span><\/span><\/span><\/span> (\u89d2B)<\/td>\n<td align=\"left\" data-sourcepos=\"172:53-172:58\">\u5df2\u77e5\u689d\u4ef6<\/td>\n<td align=\"left\" data-sourcepos=\"172:60-172:103\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n<tr data-sourcepos=\"173:1-173:105\">\n<td align=\"left\" data-sourcepos=\"173:1-173:51\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">BC<\/span><span class=\"mord mathnormal\">A<\/span><\/span><\/span><\/span> (\u89d2C)<\/td>\n<td align=\"left\" data-sourcepos=\"173:53-173:58\">\u6c42\u89e3\u76ee\u6a19<\/td>\n<td align=\"left\" data-sourcepos=\"173:60-173:103\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n<tr data-sourcepos=\"174:1-174:105\">\n<td align=\"left\" data-sourcepos=\"174:1-174:51\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u2220<\/span><span class=\"mord mathnormal\">B<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span> (\u89d2A)<\/td>\n<td align=\"left\" data-sourcepos=\"174:53-174:58\">\u8a08\u7b97\u6240\u5f97<\/td>\n<td align=\"left\" data-sourcepos=\"174:60-174:103\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mord\">6<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"table-footer hide-from-message-actions ng-star-inserted\"><span style=\"font-size: 1rem;\">\u6b64\u8868\u683c\u4e00\u76ee\u4e86\u7136\u5730\u5448\u73fe\u4e86\u554f\u984c\u7684\u521d\u59cb\u6578\u64da\u548c\u6700\u7d42\u7d50\u679c\uff0c\u65b9\u4fbf\u6838\u5c0d\u8207\u7406\u89e3\u3002\u540c\u6642\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230 <\/span><span class=\"katex\" style=\"font-size: 1rem;\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mord\">6<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord\">1<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mord\">3<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">18<\/span><span class=\"mord\">0<span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2218<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"font-size: 1rem;\">\uff0c\u9a57\u8b49\u4e86\u8a08\u7b97\u7684\u6b63\u78ba\u6027\u3002<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u540c\u4e8b\u554f\u4e86\u4e00\u984c \u77e5\u9053\u8981\u627e\u8f14\u52a9\u7dda\uff0c\u4f46\u4e00\u6642\u6c92\u60f3\u5230\uff0c\u4e58\u6cd5\u516c\u5f0f\u3001\u7562\u6c0f\u5b9a\u7406\u3001\u5713\uff1f\u5f8c\u4f86\u7528 AI \u7684\u6df1\u5ea6\u601d\u8003\uff0c\u5728 2025\/0&#8230; &raquo; <a class=\"read-more-link\" href=\"https:\/\/2blog.ilc.edu.tw\/2341\/2025\/05\/13\/ai%e7%ae%97%e6%95%b8%e5%ad%b8\/\">\u95b1\u8b80\u5168\u6587<\/a><\/p>\n","protected":false},"author":76,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,34],"tags":[],"class_list":["post-2078","post","type-post","status-publish","format-standard","hentry","category-c-2172","category-c-17790"],"meta_key":{"_edit_lock":["1747145406:76"],"_edit_last":["76"],"_wp_page_template":["default"],"_encloseme":["1"],"wp_statistics_words_count":["450"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/posts\/2078"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/users\/76"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/comments?post=2078"}],"version-history":[{"count":2,"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/posts\/2078\/revisions"}],"predecessor-version":[{"id":2082,"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/posts\/2078\/revisions\/2082"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/media?parent=2078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/categories?post=2078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/2341\/wp-json\/wp\/v2\/tags?post=2078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}