{"id":289,"date":"2023-07-06T18:52:35","date_gmt":"2023-07-06T18:52:35","guid":{"rendered":"https:\/\/mathority.org\/cn\/4x4-%e8%a1%8c%e5%88%97%e5%bc%8f%e7%9a%84%e8%a1%a5%e5%85%85%e7%a4%ba%e4%be%8b%e5%92%8c%e5%b7%b2%e8%a7%a3%e5%86%b3%e7%9a%84%e7%bb%83%e4%b9%a0\/"},"modified":"2023-07-06T18:52:35","modified_gmt":"2023-07-06T18:52:35","slug":"4x4-%e8%a1%8c%e5%88%97%e5%bc%8f%e7%9a%84%e8%a1%a5%e5%85%85%e7%a4%ba%e4%be%8b%e5%92%8c%e5%b7%b2%e8%a7%a3%e5%86%b3%e7%9a%84%e7%bb%83%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/mathority.org\/cn\/4x4-%e8%a1%8c%e5%88%97%e5%bc%8f%e7%9a%84%e8%a1%a5%e5%85%85%e7%a4%ba%e4%be%8b%e5%92%8c%e5%b7%b2%e8%a7%a3%e5%86%b3%e7%9a%84%e7%bb%83%e4%b9%a0\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7\u8865\u96c6\u6216\u8f85\u56e0\u5b50\u8ba1\u7b97 4&#215;4 \u77e9\u9635\u7684\u884c\u5217\u5f0f"},"content":{"rendered":"<p>\u5728\u672c\u9875\u4e2d\uff0c\u6211\u4eec\u5c06\u4e86\u89e3\u5982\u4f55<strong>\u901a\u8fc7\u52a0\u6cd5\u6216\u8f85\u56e0\u5b50\u6c42\u89e3\u884c\u5217\u5f0f<\/strong>\uff0c\u4ee5\u53ca<strong>\u5982\u4f55\u8ba1\u7b97 4\u00d74 \u7ef4\u77e9\u9635\u7684\u884c\u5217\u5f0f<\/strong>\u3002\u4f46\u662f\uff0c\u8981\u6c42\u89e3 4 \u9636\u77e9\u9635\u7684\u884c\u5217\u5f0f\uff0c\u60a8\u5fc5\u987b\u9996\u5148\u77e5\u9053\u5982\u4f55\u4f7f\u7528\u884c\u6216\u5217\u7684\u4f34\u968f\u8bcd\u6765\u8ba1\u7b97\u884c\u5217\u5f0f\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5c06\u9996\u5148\u4e86\u89e3\u5982\u4f55\u901a\u8fc7\u4f34\u968f\u6216\u8f85\u56e0\u5b50\u627e\u5230\u884c\u5217\u5f0f\uff0c\u7136\u540e\u5982\u4f55\u521b\u5efa 4 \u9636\u884c\u5217\u5f0f<strong>\u3002<\/strong><\/p>\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u901a\u8fc7\u52a0\u6cd5\u6216\u8f85\u56e0\u5b50\u8ba1\u7b97\u884c\u5217\u5f0f\uff1f<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\">\u53ef\u4ee5\u901a\u8fc7\u5c06\u4efb\u610f\u884c\u6216\u5217\u4e2d\u7684\u5143\u7d20\u4e0e\u5176\u5404\u81ea\u7684<strong>\u8865\u6570\uff08\u6216\u8f85\u56e0\u5b50\uff09<\/strong>\u7684\u4e58\u79ef\u76f8\u52a0\u6765\u8ba1\u7b97\u884c\u5217\u5f0f\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u79f0\u4e3a\u901a\u8fc7\u4f34\u968f\u6216\u8f85\u56e0\u5b50\u6c42\u89e3\u884c\u5217\u5f0f\uff0c\u751a\u81f3\u6709\u6570\u5b66\u5bb6\u8fd8\u544a\u8bc9\u4f60\u62c9\u666e\u62c9\u65af\u6cd5\u5219\uff08\u6216\u62c9\u666e\u62c9\u65af\u5b9a\u7406\uff09\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u4ee3\u8868\u6c42\u89e3\u884c\u5217\u5f0f\u7684\u793a\u4f8b\uff1a<\/h3>\n<p>\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u901a\u8fc7\u4f34\u968f\u51fd\u6570\u6c42\u89e3<a href=\"https:\/\/mathority.org\/cn\/\u884c\u5217\u5f0f-3x3-sarrus-\u89c4\u5219\u793a\u4f8b\u548c\u5df2\u89e3\u51b3\u7684\u7ec3\u4e60\/\">3 \u00d7 3 \u77e9\u9635\u884c\u5217\u5f0f<\/a>\u7684\u5b9e\u9645\u793a\u4f8b\u3002\u8ba9\u6211\u4eec\u505a\u51fa\u4ee5\u4e0b\u884c\u5217\u5f0f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1feaff2f490e464eb2de796be2d7feaf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 2 &amp; 3 &amp; 1 \\\\[1.1ex] 0 &amp; -2 &amp; 5 \\\\[1.1ex] 3 &amp; 7 &amp; -4 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"94\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u9009\u62e9\u884c\u5217\u5f0f\u7684\u5217\u6216\u884c\u3002\u5728\u672c\u4f8b\u4e2d\uff0c<strong>\u6211\u4eec\u9009\u62e9\u7b2c\u4e00\u5217<\/strong>\uff0c\u56e0\u4e3a\u5b83\u6709 0\uff0c\u56e0\u6b64\u66f4\u5bb9\u6613\u6c42\u89e3\u3002<\/p>\n<p>\u73b0\u5728\u6211\u4eec\u5fc5\u987b<strong>\u5c06\u7b2c\u4e00\u5217\u7684\u5143\u7d20\u4e58\u4ee5\u5b83\u4eec\u5404\u81ea\u7684\u526f\u503c<\/strong>\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-277db6b7715c898778f6c5e52d539f70_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 2 &amp; 3 &amp; 1 \\\\[1.1ex] 0 &amp; -2 &amp; 5 \\\\[1.1ex] 3 &amp; 7 &amp; -4 \\end{vmatrix} \\displaystyle = 2\\bm{\\cdot} \\text{Adj(2)} + 0\\bm{\\cdot} \\text{Adj(0)} + 3 \\bm{\\cdot} \\text{Adj(3)}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"358\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> 0\u7684\u8865\u7801\u4e0d\u9700\u8981\u8ba1\u7b97\uff0c\u56e0\u4e3a\u4e58\u4ee50\u5c31\u4f1a\u53d6\u6d88\u5b83\u3002\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u7b80\u5316\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d0bc46ac6c253597d2de076872399b31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  = 2\\bm{\\cdot} \\text{Adj(2)} + \\cancel{0\\bm{\\cdot} \\text{Adj(0)}} + 3 \\bm{\\cdot} \\text{Adj(3)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"256\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a7c52721ec43ef71d0c163ce48807dec_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = 2\\bm{\\cdot} \\text{Adj(2)}  + 3 \\bm{\\cdot} \\text{Adj(3)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"169\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u6211\u4eec\u73b0\u5728\u7ee7\u7eed<strong>\u8ba1\u7b97\u8865\u6570<\/strong>\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dec96b7ca85468ea5e5e4ace37bfc596_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = 2\\cdot (-1)^{1+1} \\cdot \\begin{vmatrix} -2 &amp; 5  \\\\[1.1ex] 7 &amp; -4   \\end{vmatrix}  + 3 \\cdot (-1)^{3+1} \\cdot \\begin{vmatrix} 3 &amp; 1  \\\\[1.1ex] -2 &amp; 5   \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"364\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div style=\"background-color:#fffde7;padding-top: 20px; padding-bottom: 0.5px; padding-right: 40px; padding-left: 30px\" class=\"has-background\">\n<p align=\"LEFT\">\u8bb0\u4f4f\u8981\u8ba1\u7b97<strong>\u526f<\/strong><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-41d4a89db3722950dc94351832a1bcd9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a_{ij}\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"20\" style=\"vertical-align: -6px;\"><\/p>\n<p>\uff0c\u5373\u884c\u9879\u76ee<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-695d9d59bd04859c6c99e7feb11daab6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"i\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"6\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u548c\u4e13\u680f<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-43c82d5bb00a7568d935a12e3bd969dd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"j\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p>\uff0c\u5fc5\u987b\u5e94\u7528\u4ee5\u4e0b\u516c\u5f0f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dcce4b79a3549da03df7c78b678add31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Adjunto de } a_{ij} = (-1)^{i+j} \\bm{\\cdot} \\text{Menor complementario de } a_{ij}\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"430\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p align=\"LEFT\">\u5176\u4e2d\u4e92\u8865\u5c0f\u6570<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-41d4a89db3722950dc94351832a1bcd9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a_{ij}\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"20\" style=\"vertical-align: -6px;\"><\/p>\n<p>\u662f\u901a\u8fc7\u5220\u9664\u884c\u6765\u786e\u5b9a\u77e9\u9635\u7684\u884c\u5217\u5f0f<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-695d9d59bd04859c6c99e7feb11daab6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"i\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"6\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u548c\u4e13\u680f<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-43c82d5bb00a7568d935a12e3bd969dd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"j\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p>\u3002<\/p>\n<\/div>\n<div class=\"adsb30\" style=\" margin:px; text-align:\"><\/div>\n<p>\u6211\u4eec\u6c42\u89e3\u5e42\u548c\u884c\u5217\u5f0f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d445739b9dcbe8e91d0587f6848b4b58_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= 2 \\cdot 1 \\cdot (8-35) + 3 \\cdot 1 \\cdot \\bigl(15-(-2)\\bigr)\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"280\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-de7e80c3d8d61baaf0c0ee68eb689b18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= 2 \\cdot 1 \\cdot (-27) + 3 \\cdot 1 \\cdot 17\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"190\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u6211\u4eec\u7528\u8ba1\u7b97\u5668\u6765\u64cd\u4f5c\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1db7bb8783ce13a8eb0f765c85a7f268_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= -54 + 51\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"89\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-784bc17636ee50685733e25452656e2c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\bm{-3}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"42\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c<strong>\u884c\u5217\u5f0f\u7684\u7ed3\u679c\u662f-3\u3002<\/strong><\/p>\n<p>\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u6211\u4eec\u7528 Sarrus \u89c4\u5219\u8ba1\u7b97\u884c\u5217\u5f0f\uff0c\u6211\u4eec\u4f1a\u5f97\u5230\u76f8\u540c\u7684\u7ed3\u679c\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-67d7d7936dd26361dcdfda5b28d62ba3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{aligned} \\begin{vmatrix} 2 &amp; 3 &amp; 1 \\\\[1.1ex] 0 &amp; -2 &amp; 5 \\\\[1.1ex] 3 &amp; 7 &amp; -4   \\end{vmatrix} &amp; = 2 \\cdot (-2) \\cdot (-4) + 3 \\cdot 5 \\cdot  3 +  0 \\cdot 7 \\cdot 1  - 3 \\cdot (-2) \\cdot 1 - 7 \\cdot 5 \\cdot 2- 0 \\cdot 3 \\cdot (-4)  \\\\  &amp; =  16 +45 + 0  +6 - 70 -0   \\\\[2ex] &amp;  =  \\bm{-3}   \\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"150\" width=\"651\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u4e00\u65e6\u6211\u4eec\u77e5\u9053\u4e86\u4ee3\u8868\u5982\u4f55\u8ba1\u7b97\u884c\u5217\u5f0f\uff0c\u6211\u4eec\u73b0\u5728\u5c31\u53ef\u4ee5\u770b\u5230\u5982\u4f55\u627e\u5230 4 \u9636\u884c\u5217\u5f0f\u7684\u7ed3\u679c\uff1a<\/p>\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u8ba1\u7b974\u00d74\u884c\u5217\u5f0f\uff1f<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\">\u4e3a\u4e86\u6c42\u89e3<strong>4 \u9636\u77e9\u9635\u7684\u884c\u5217\u5f0f<\/strong>\uff0c\u6211\u4eec\u5fc5\u987b\u5e94\u7528\u6211\u4eec\u521a\u521a\u4e3a\u4ee3\u8868\u770b\u5230\u7684\u8fc7\u7a0b\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u6211\u4eec\u9009\u62e9\u4efb\u4f55\u884c\u6216\u5217\uff0c\u7136\u540e\u5c06\u5176\u5143\u7d20\u7684\u4e58\u79ef\u4e0e\u5176\u5404\u81ea\u7684\u8865\u96c6\u76f8\u52a0\u3002<\/p>\n<p>\u7136\u800c\uff0c\u4f7f\u7528\u6b64\u8fc7\u7a0b\u5904\u7406 4 \u00d7 4 \u884c\u5217\u5f0f\u65f6\uff0c\u5fc5\u987b\u8ba1\u7b97\u8bb8\u591a 3 \u00d7 3 \u884c\u5217\u5f0f\uff0c\u5e76\u4e14\u8fd9\u4e9b\u884c\u5217\u5f0f\u5f80\u5f80\u9700\u8981\u5f88\u957f\u65f6\u95f4\u3002\u56e0\u6b64\uff0c\u5728\u8ba1\u7b97\u4f34\u968f\u6570 \u4e4b\u524d<strong>\uff0c\u9700\u8981\u5bf9\u7ebf \u8fdb\u884c\u53d8\u6362<\/strong>\uff0c\u7c7b\u4f3c\u4e8e\u9ad8\u65af\u65b9\u6cd5\u3002\u7531\u4e8e\u884c\u5217\u5f0f\u7684\u4e00\u884c\u53ef\u4ee5\u66ff\u6362\u4e3a\u540c\u4e00\u884c\u52a0\u4e0a\u53e6\u4e00\u884c\u4e58\u4ee5\u4e00\u4e2a\u6570\u5b57\u7684\u603b\u548c\u3002<\/p>\n<p class=\"has-background\" style=\"background-color:#dff6ff\">\u56e0\u6b64\uff0c\u8981\u8ba1\u7b97\u4ee3\u8868\u76844\u9636\u884c\u5217\u5f0f\uff0c\u5fc5\u987b\u9009\u62e9<strong>\u5305\u542b\u6700\u591a\u96f6\u7684\u5217<\/strong>\uff0c\u56e0\u4e3a\u8fd9\u6837\u6709\u5229\u4e8e\u8ba1\u7b97\u3002\u7136\u540e\u6211\u4eec\u5bf9\u884c\u8fdb\u884c\u5185\u90e8\u64cd\u4f5c\uff0c\u4f7f\u5f97\u8be5\u5217\u4e2d\u9664 1 \u4e4b\u5916\u7684\u6240\u6709\u5143\u7d20\u90fd\u4e3a\u7a7a\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u4f8b\u5b50\u6765\u770b\u770b\u5982\u4f55\u5236\u4f5c 4&#215;4 \u884c\u5217\u5f0f\uff1a<\/p>\n<h3 class=\"wp-block-heading\">\u6c42\u89e3 4\u00d74 \u884c\u5217\u5f0f\u7684\u793a\u4f8b\uff1a<\/h3>\n<p>\u6211\u4eec\u5c06\u6c42\u89e3\u4ee5\u4e0b 4\u00d74 \u65b9\u9635\u7684\u884c\u5217\u5f0f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ababb957a73ca707531ddbd0b18e8c88_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 1 &amp; 4 &amp; 2 &amp; 1 \\\\[1.1ex] -1 &amp; -1 &amp; 3 &amp; 2 \\\\[1.1ex] 0 &amp; 5 &amp; 7 &amp; -4 \\\\[1.1ex] 2 &amp; 1 &amp; -3 &amp; 2 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"108\" width=\"147\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5177\u6709\u6700\u591a\u96f6\u7684\u5217\u662f\u7b2c\u4e00\u5217\u3002\u56e0\u6b64\uff0c<strong>\u6211\u4eec\u9009\u62e9\u7b2c\u4e00\u5217\u3002<\/strong><\/p>\n<p>\u5229\u7528\u8fd9\u4e00\u5217\u4e2d\u6709\u4e00\u4e2a 1 \u7684\u4e8b\u5b9e\uff0c\u6211\u4eec\u5c06\u628a\u7b2c\u4e00\u5217\u7684\u6240\u6709\u5176\u4ed6\u5143\u7d20\u8f6c\u6362\u4e3a 0\u3002\u56e0\u4e3a\u4f7f\u7528\u6709 1 \u7684\u884c\u8fdb\u884c\u8ba1\u7b97\u66f4\u5bb9\u6613\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e3a\u4e86\u5c06\u8be5\u5217\u4e2d\u7684\u6240\u6709\u5176\u4ed6\u5143\u7d20\u53d8\u4e3a 0\uff0c<strong>\u6211\u4eec\u5c06\u7b2c\u4e00\u884c\u6dfb\u52a0\u5230\u7b2c\u4e8c\u884c<\/strong>\uff0c\u7136\u540e<strong>\u4ece\u7b2c\u56db\u884c\u51cf\u53bb\u7b2c\u4e00\u884c\u4e58\u4ee5 2<\/strong> \u3002\u7b2c\u4e09\u884c\u4e0d\u9700\u8981\u66f4\u6539\uff0c\u56e0\u4e3a\u7b2c\u4e00\u5217\u4e2d\u5df2\u7ecf\u6709 0\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6df3837acf7c66f40eb4ce624e7a9417_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 1 &amp; 4 &amp; 2 &amp; 1 \\\\[1.1ex] -1 &amp; -1 &amp; 3 &amp; 2 \\\\[1.1ex] 0 &amp; 5 &amp; 7 &amp; -4 \\\\[1.1ex] 2 &amp; 1 &amp; -3 &amp; 2 \\end{vmatrix} \\begin{matrix} \\\\[1.1ex] \\xrightarrow{f_2 + f_1}  \\\\[1.1ex]  \\\\[1.1ex] \\xrightarrow{f_4 - 2f_1} \\end{matrix}   \\begin{vmatrix} 1 &amp; 4 &amp; 2 &amp; 1 \\\\[1.1ex] 0 &amp; 3 &amp; 5 &amp; 3 \\\\[1.1ex] 0 &amp; 5 &amp; 7 &amp; -4 \\\\[1.1ex] 0 &amp; -7 &amp; -7 &amp; 0 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"111\" width=\"351\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"adsb30\" style=\" margin:12px; text-align:center\">\n<div id=\"ezoic-pub-ad-placeholder-118\"><\/div>\n<\/div>\n<p>\u4e00\u65e6\u6211\u4eec\u5c06\u6240\u9009\u5217\u4e2d\u9664\u4e00\u4e2a\u5143\u7d20\u4e4b\u5916\u7684\u6240\u6709\u5143\u7d20\u90fd\u8f6c\u6362\u4e3a 0\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8ba1\u7b97\u4ee3\u8868\u7684\u884c\u5217\u5f0f\u3002\u4e5f\u5c31\u662f\u8bf4<strong>\uff0c\u6211\u4eec\u5c06\u5217\u4e2d\u5143\u7d20\u5404\u81ea\u7684\u526f\u4e58\u79ef\u76f8\u52a0\uff1a<\/strong><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0c3bad793847458372f7af88f98a921d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 1 &amp; 4 &amp; 2 &amp; 1 \\\\[1.1ex] 0 &amp; 3 &amp; 5 &amp; 3 \\\\[1.1ex] 0 &amp; 5 &amp; 7 &amp; -4 \\\\[1.1ex] 0 &amp; -7 &amp; -7 &amp; 0 \\end{vmatrix} \\displaystyle = 1\\bm{\\cdot} \\text{Adj(1)} + 0\\bm{\\cdot} \\text{Adj(0)} +0\\bm{\\cdot} \\text{Adj(0)} + 0\\bm{\\cdot} \\text{Adj(0)}\" title=\"Rendered by QuickLaTeX.com\" height=\"108\" width=\"484\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u9879\u4e58\u4ee5 0 \u5c31\u53d6\u6d88\u4e86\uff0c\u6240\u4ee5\u6211\u4eec\u7b80\u5316\u5b83\u4eec\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2239b8f823620f93d1b5f1379434dc99_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=1\\bm{\\cdot} \\text{Adj(1)} + \\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +\\cancel{0\\bm{\\cdot} \\text{Adj(0)}} + \\cancel{0\\bm{\\cdot} \\text{Adj(0)}}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"343\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b2a34a2dd540c8b59c0219616d77503e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=1\\bm{\\cdot} \\text{Adj(1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"83\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-82725740cf1ab8626df8c97a23ac9b3e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=\\text{Adj(1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"69\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\u8ba1\u7b97 1 \u7684\u4f34\u968f\u5c31\u8db3\u591f\u4e86\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e7a9b3d371059e3c485bde74c0a3ca9e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{1+1} \\cdot \\begin{vmatrix}  3 &amp; 5 &amp; 3 \\\\[1.1ex] 5 &amp; 7 &amp; -4 \\\\[1.1ex] -7 &amp; -7 &amp; 0   \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"203\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u7528 Sarrus \u89c4\u5219\u548c\u5e42\u8ba1\u7b97\u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-93f12fd53bc084017d9148e07b836911_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\inlinestyle = 1 \\cdot \\bigl[  3 \\cdot 7 \\cdot 0 + 5 \\cdot (-4) \\cdot (-7) + 5 \\cdot (-7)  \\cdot 3 - (-7)\\cdot 7 \\cdot 3 - (-7) \\cdot (-4) \\cdot 3 - 5 \\cdot 5 \\cdot 0 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"639\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7d0573ada70206ddd4354f35b2d835e1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=3 \\cdot 7 \\cdot 0 + 5 \\cdot (-4) \\cdot (-7) + 5 \\cdot (-7)  \\cdot 3 - (-7)\\cdot 7 \\cdot 3 - (-7) \\cdot (-4) \\cdot 3 - 5 \\cdot 5 \\cdot 0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"606\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u540e\u6211\u4eec\u7528\u8ba1\u7b97\u5668\u6c42\u89e3\u8fd0\u7b97\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1b1d16c734194e3d70848c9c2a0e3267_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle =0+140-105 +147 - 84 - 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"242\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1824a37e33693e87497735175f429f1e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle =\\bm{98}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"37\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\">\u89e3\u51b3\u4e86 4\u00d74 \u884c\u5217\u5f0f\u7684\u7ec3\u4e60<\/h2>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e601<\/h3>\n<p>\u6c42\u89e3\u4ee5\u4e0b 4 \u9636\u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-eb70dab3d17f588315c49d05c112259a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 2 &amp; 3 &amp; -1 &amp; 0 \\\\[1.1ex] 0 &amp; 1 &amp; 1 &amp; 1 \\\\[1.1ex] 2 &amp; 3 &amp; 1 &amp; -1 \\\\[1.1ex] 4 &amp; 1 &amp; 2 &amp; 0 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"107\" width=\"133\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6211\u4eec\u7528\u8f85\u56e0\u5b50\u6cd5\u6c42\u51fa4\u00d74\u884c\u5217\u5f0f\u7684\u7ed3\u679c\u3002\u4f46\u9996\u5148\u6211\u4eec\u5bf9\u884c\u8fdb\u884c\u64cd\u4f5c\uff0c\u5c06\u5217\u4e2d\u9664 1 \u4e4b\u5916\u7684\u6240\u6709\u5143\u7d20\u8bbe\u7f6e\u4e3a\u96f6\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8c809d42e17e7e1ee0332b61c1d73d2e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 2 &amp; 3 &amp; -1 &amp; 0 \\\\[1.1ex] 0 &amp; 1 &amp; 1 &amp; 1 \\\\[1.1ex] 2 &amp; 3 &amp; 1 &amp; -1 \\\\[1.1ex] 4 &amp; 1 &amp; 2 &amp; 0 \\end{vmatrix} \\begin{matrix} \\\\[1.1ex] \\\\[1.1ex] \\xrightarrow{f_3 + f_2}  \\\\[1.1ex] \\  \\end{matrix} \\begin{vmatrix} 2 &amp; 3 &amp; -1 &amp; 0 \\\\[1.1ex] 0 &amp; 1 &amp; 1 &amp; 1 \\\\[1.1ex] 2 &amp; 4 &amp; 2 &amp; 0 \\\\[1.1ex] 4 &amp; 1 &amp; 2 &amp; 0 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"107\" width=\"289\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u73b0\u5728\u6211\u4eec\u901a\u8fc7\u4e0e\u6700\u540e\u4e00\u5217\u7684\u4f34\u968f\u6765\u6c42\u89e3\u884c\u5217\u5f0f 4\u00d74\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4c615be7d70d93645d25c2ddaa0ac6aa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 2 &amp; 3 &amp; -1 &amp; 0 \\\\[1.1ex] 0 &amp; 1 &amp; 1 &amp; 1 \\\\[1.1ex] 2 &amp; 4 &amp; 2 &amp; 0 \\\\[1.1ex] 4 &amp; 1 &amp; 2 &amp; 0 \\end{vmatrix} = 0\\bm{\\cdot} \\text{Adj(0)} +1\\bm{\\cdot} \\text{Adj(1)} +0\\bm{\\cdot} \\text{Adj(0)} + 0\\bm{\\cdot} \\text{Adj(0)}\" title=\"Rendered by QuickLaTeX.com\" height=\"108\" width=\"457\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u7b80\u5316\u4e00\u4e0b\u672f\u8bed\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dd6256c60b3b6c80618d045fe7c5d5aa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +1\\bm{\\cdot} \\text{Adj(1)} +\\cancel{0\\bm{\\cdot} \\text{Adj(0)}} + \\cancel{0\\bm{\\cdot} \\text{Adj(0)}}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"343\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-029594698d2ffb9e165ed06c51bd495e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\text{Adj(1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"69\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u8ba1\u7b97 1 \u7684\u4f34\u968f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-50df3a50bef626dd5e03150e1b72f005_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{2+4} \\cdot \\begin{vmatrix} 2 &amp; 3 &amp; -1 \\\\[1.1ex] 2 &amp; 4 &amp; 2 \\\\[1.1ex]4 &amp; 1 &amp; 2 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"176\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u540e\uff0c\u6211\u4eec\u7528 Sarrus \u89c4\u5219\u8ba1\u7b97 3\u00d73 \u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-763a4951c54ea0c5f771511b8f9352b9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{6} \\cdot \\bigl[16+24-2+16-4-12 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"23\" width=\"284\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b43ce8127960f80ab1bd12ceade45a15_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = 1 \\cdot \\bigl[38 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"70\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dbd344edf36713829b1e6d27c291c358_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = \\bm{38}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"37\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e602<\/h3>\n<p>\u8ba1\u7b97\u4ee5\u4e0b 4 \u9636\u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-75fcf71d7c2badd23fe9196996dd87b9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 1 &amp; 3 &amp; -2 &amp; 2 \\\\[1.1ex] 2 &amp; 0 &amp; 1 &amp; 4 \\\\[1.1ex] 1 &amp; 1 &amp; 2 &amp; 3 \\\\[1.1ex] 5 &amp; -1 &amp; 3 &amp; 1 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"107\" width=\"133\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6211\u4eec\u5c06\u901a\u8fc7\u8f85\u56e0\u5b50\u8ba1\u7b97 4\u00d74 \u884c\u5217\u5f0f\u3002\u4f46\u8981\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u6211\u4eec\u9996\u5148\u5bf9\u884c\u6267\u884c\u64cd\u4f5c\uff0c\u5c06\u5217\u4e2d\u9664 1 \u4e4b\u5916\u7684\u6240\u6709\u5143\u7d20\u8bbe\u7f6e\u4e3a\u96f6\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ede833746cd2f0d82603b38b58dc4aa5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} 1 &amp; 3 &amp; -2 &amp; 2 \\\\[1.1ex] 2 &amp; 0 &amp; 1 &amp; 4 \\\\[1.1ex] 1 &amp; 1 &amp; 2 &amp; 3 \\\\[1.1ex] 5 &amp; -1 &amp; 3 &amp; 1 \\end{vmatrix} \\begin{matrix} \\xrightarrow{f_1 - 3f_3} \\\\[1.1ex] \\\\[1.1ex] \\\\[1.1ex] \\xrightarrow{f_4 + f_3}  \\end{matrix} \\begin{vmatrix}-2 &amp; 0 &amp; -8 &amp; -7 \\\\[1.1ex] 2 &amp; 0 &amp; 1 &amp; 4 \\\\[1.1ex] 1 &amp; 1 &amp; 2 &amp; 3 \\\\[1.1ex] 6 &amp; 0 &amp; 5 &amp; 4 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"118\" width=\"323\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u73b0\u5728\u6211\u4eec\u901a\u8fc7\u4e0e\u7b2c\u4e8c\u5217\u7684\u4f34\u968f\u6765\u6c42\u89e3\u884c\u5217\u5f0f 4\u00d74\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-399eaa68014d6ebedb35770b1a1faa93_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix} -2 &amp; 0 &amp; -8 &amp; -7 \\\\[1.1ex] 2 &amp; 0 &amp; 1 &amp; 4 \\\\[1.1ex] 1 &amp; 1 &amp; 2 &amp; 3 \\\\[1.1ex] 6 &amp; 0 &amp; 5 &amp; 4\\end{vmatrix} = 0\\bm{\\cdot} \\text{Adj(0)} +0\\bm{\\cdot} \\text{Adj(0)} +1\\bm{\\cdot} \\text{Adj(1)}+ 0\\bm{\\cdot} \\text{Adj(0)}\" title=\"Rendered by QuickLaTeX.com\" height=\"108\" width=\"485\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u7b80\u5316\u4e00\u4e0b\u672f\u8bed\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b974efd2413b220e574aa45de9e8da20_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +\\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +1\\bm{\\cdot} \\text{Adj(1)}+\\cancel{0\\bm{\\cdot} \\text{Adj(0)}}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"343\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-029594698d2ffb9e165ed06c51bd495e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\text{Adj(1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"69\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u8ba1\u7b97 1 \u7684\u4f34\u968f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-599484242287cf94fb222cb16fb92131_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{3+2} \\begin{vmatrix}-2 &amp; -8 &amp; -7 \\\\[1.1ex] 2 &amp; 1 &amp; 4 \\\\[1.1ex] 6 &amp; 5 &amp; 4\\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"194\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u540e\uff0c\u6211\u4eec\u7528 Sarrus \u89c4\u5219\u548c\u8ba1\u7b97\u5668\u8ba1\u7b97 3\u00d73 \u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b49d5a07a376cb7c236daea3910053dc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{5} \\cdot \\bigl[-8-192-70+42+40+64 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"23\" width=\"316\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-647420e9c51528a2b7d9e5d7ab9d9c9f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = -1 \\cdot \\bigl[-124 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"107\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7de3e73e3809178c7ade54977ff42f5f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = \\bm{124}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"46\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<div class=\"adsb30\" style=\" margin:12px; text-align:center\">\n<div id=\"ezoic-pub-ad-placeholder-119\"><\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e603<\/h3>\n<p>\u6c42\u4ee5\u4e0b 4 \u9636\u884c\u5217\u5f0f\u7684\u7ed3\u679c\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-73122188e3bb7cb74e2f0c668fa2121f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 2 &amp; -2 &amp; -1 &amp; 3 \\\\[1.1ex] 4 &amp; 3 &amp; 1 &amp; -2 \\\\[1.1ex] -1 &amp; 2 &amp; 1 &amp; -1 \\\\[1.1ex] 3 &amp; -2 &amp; -4 &amp; 5 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"107\" width=\"161\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6211\u4eec\u5c06\u7531\u4ee3\u8868\u4eec\u6765\u89e3\u51b34\u00d74\u884c\u5217\u5f0f\u3002\u5c3d\u7ba1\u6211\u4eec\u9996\u5148\u5bf9\u884c\u8fdb\u884c\u64cd\u4f5c\uff0c\u5c06\u5217\u4e2d\u9664\u4e00\u4e2a\u5143\u7d20\u4e4b\u5916\u7684\u6240\u6709\u5143\u7d20\u8f6c\u6362\u4e3a\u96f6\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-09884ca951854a78be30a1ab22ada92b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix}2 &amp; -2 &amp; -1 &amp; 3 \\\\[1.1ex] 4 &amp; 3 &amp; 1 &amp; -2 \\\\[1.1ex] -1 &amp; 2 &amp; 1 &amp; -1 \\\\[1.1ex] 3 &amp; -2 &amp; -4 &amp; 5 \\end{vmatrix} \\begin{matrix} \\xrightarrow{f_1 + f_2} \\\\[1.1ex] \\\\[1.1ex]\\xrightarrow{f_3 - f_2} \\\\[1.1ex] \\xrightarrow{f_4 + 4f_2}  \\end{matrix} \\begin{vmatrix}6 &amp; 1 &amp; 0 &amp; 1 \\\\[1.1ex] 4 &amp; 3 &amp; 1 &amp; -2 \\\\[1.1ex] -5 &amp; -1 &amp; 0 &amp; 1 \\\\[1.1ex] 19 &amp; 10 &amp; 0 &amp; -3 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"125\" width=\"351\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u73b0\u5728\u6211\u4eec\u7528\u7b2c\u4e09\u5217\u4ee3\u8868\u6765\u6c42\u89e3\u884c\u5217\u5f0f 4\u00d74\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-025c7fdc16e4c1d95e77203464404bf3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix}6 &amp; 1 &amp; 0 &amp; 1 \\\\[1.1ex] 4 &amp; 3 &amp; 1 &amp; -2 \\\\[1.1ex] -5 &amp; -1 &amp; 0 &amp; 1 \\\\[1.1ex] 19 &amp; 10 &amp; 0 &amp; -3 \\end{vmatrix}  = 0\\bm{\\cdot} \\text{Adj(0)} +1\\bm{\\cdot} \\text{Adj(1)} +0\\bm{\\cdot} \\text{Adj(0)}+ 0\\bm{\\cdot} \\text{Adj(0)}\" title=\"Rendered by QuickLaTeX.com\" height=\"108\" width=\"485\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u7b80\u5316\u4e00\u4e0b\u672f\u8bed\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3acde32d0408398738d704722018fb9c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\cancel{0\\bm{\\cdot}+ \\text{Adj(0)}} +1\\bm{\\cdot} \\text{Adj(1)}+\\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +\\cancel{0\\bm{\\cdot} \\text{Adj(0)}}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"364\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-029594698d2ffb9e165ed06c51bd495e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\text{Adj(1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"69\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u8ba1\u7b97 1 \u7684\u4f34\u968f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b919673f5add2981d4170b0aea65735e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{2+3} \\begin{vmatrix}6 &amp; 1 &amp; 1 \\\\[1.1ex] -5 &amp; -1 &amp; 1 \\\\[1.1ex] 19 &amp; 10 &amp; -3\\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"194\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u540e\uff0c\u6211\u4eec\u7528 Sarrus \u89c4\u5219\u548c\u8ba1\u7b97\u5668\u6c42\u89e3 3\u00d73 \u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a9985880705b7ca57fbafd39d9d8ffb7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = (-1)^{5} \\cdot \\bigl[18+19-50+19-60-15\\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"23\" width=\"302\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4cb59f26a6ada4b6c25bf7036a43307e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = -1 \\cdot \\bigl[-69 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"98\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-36f353d56aed6ff4825e8ccaf3d1e3cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = \\bm{69}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"37\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e604<\/h3>\n<p>\u8ba1\u7b97\u4ee5\u4e0b 4 \u9636\u884c\u5217\u5f0f\u7684\u7ed3\u679c\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c97cbbc8f7ec94839181ffee815e4cc5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 3 &amp; 4 &amp; -2 &amp; -1 \\\\[1.1ex] 2 &amp; -2 &amp; 5 &amp; -5 \\\\[1.1ex] -3 &amp; 5 &amp; 2 &amp; 6 \\\\[1.1ex] -1 &amp; -2 &amp; -1 &amp; 3 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"107\" width=\"161\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6211\u4eec\u5c06\u4f7f\u7528\u62c9\u666e\u62c9\u65af\u6cd5\u5219\u6c42\u89e3\u884c\u5217\u5f0f 4\u00d74\u3002\u4f46\u60a8\u5fc5\u987b\u9996\u5148\u5bf9\u884c\u8fdb\u884c\u8fd0\u7b97\uff0c\u5c06\u5217\u4e2d\u9664 1 \u4e4b\u5916\u7684\u6240\u6709\u5143\u7d20\u8bbe\u7f6e\u4e3a\u96f6\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f7f8b52a83480123b6b7dd2dbb8e4eed_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix}3 &amp; 4 &amp; -2 &amp; -1 \\\\[1.1ex] 2 &amp; -2 &amp; 5 &amp; -5 \\\\[1.1ex] -3 &amp; 5 &amp; 2 &amp; 6 \\\\[1.1ex] -1 &amp; -2 &amp; -1 &amp; 3\\end{vmatrix} \\begin{matrix} \\xrightarrow{f_1 + 3f_4} \\\\[1.1ex] \\xrightarrow{f_2 +2f_4} \\\\[1.1ex]\\xrightarrow{f_3 - 3f_4} \\\\[1.1ex] \\  \\end{matrix} \\begin{vmatrix}0 &amp; -2 &amp; -5 &amp; 8 \\\\[1.1ex]0 &amp; -6 &amp; 3 &amp; 1 \\\\[1.1ex] 0 &amp; 11 &amp; 5 &amp; -3 \\\\[1.1ex] -1 &amp; -2 &amp; -1 &amp; 3\\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"118\" width=\"365\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u73b0\u5728\u6211\u4eec\u7531\u4ee3\u8868\u6c42\u89e3\u7b2c\u4e00\u5217\u7684\u884c\u5217\u5f0f 4\u00d74\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-18bb3f7dbb81eb9cc025112114d11ce0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{vmatrix}0 &amp; -2 &amp; -5 &amp; 8 \\\\[1.1ex]0 &amp; -6 &amp; 3 &amp; 1 \\\\[1.1ex] 0 &amp; 11 &amp; 5 &amp; -3 \\\\[1.1ex] -1 &amp; -2 &amp; -1 &amp; 3 \\end{vmatrix}  = 0\\bm{\\cdot} \\text{Adj(0)} +0\\bm{\\cdot} \\text{Adj(0)} + 0\\bm{\\cdot} \\text{Adj(0)}-1\\bm{\\cdot} \\text{Adj(-1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"108\" width=\"504\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u7b80\u5316\u4e00\u4e0b\u672f\u8bed\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6ac1edf725b65caef7eb39145aea4933_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= \\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +\\cancel{0\\bm{\\cdot} \\text{Adj(0)}} +\\cancel{0\\bm{\\cdot} \\text{Adj(0)}}-1\\bm{\\cdot} \\text{Adj(-1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"349\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bfef84c16e45679b2b46f1f8913f38e1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=- \\text{Adj(-1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"89\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6211\u4eec\u8ba1\u7b97-1\u7684\u4f34\u968f\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e490606c22340f1f9cd1113227e5ff09_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle =- (-1)^{4+1} \\begin{vmatrix} -2 &amp; -5 &amp; 8 \\\\[1.1ex]-6 &amp; 3 &amp; 1 \\\\[1.1ex] 11 &amp; 5 &amp; -3 \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"86\" width=\"207\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u540e\uff0c\u6211\u4eec\u7528 Sarrus \u89c4\u5219\u548c\u8ba1\u7b97\u5668\u6c42\u89e3 3\u00d73 \u884c\u5217\u5f0f\uff1a <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-00cb04c5cac0d36fdc9d350d35d03147_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = -(-1)^{5} \\cdot \\bigl[18-55-240-264+10+90\\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"23\" width=\"334\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-40374b9fedd37c8b42c0c0661da29e40_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = -(-1) \\cdot \\bigl[-441 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"134\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-edeeb7ad0e18ba2edb7f7163fb390155_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = - \\bigl[+441 \\bigr]\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"85\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7a41b8d5835f4f5c96395cf976d30b8c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = \\bm{-441}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"59\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<p>\u901a\u8fc7\u6240\u6709\u8fd9\u4e9b\u7ec3\u4e60\uff0c\u60a8\u53ef\u80fd\u5df2\u7ecf\u77e5\u9053\u5982\u4f55\u6c42\u89e3 4&#215;4 \u884c\u5217\u5f0f\u3002\u6781\u597d\u7684\uff01\u6211\u4eec\u5e0c\u671b\u901a\u8fc7\u6240\u6709\u8fd9\u4e9b\u7ec3\u4e60\uff0c\u60a8\u73b0\u5728\u80fd\u591f\u8ba1\u7b97\u51fa<a href=\"https:\/\/mathority.org\/cn\/\u77e9\u9635\u7684\u79e9\/\">4\u00d74 \u7ef4\u77e9\u9635\u7684\u8303\u56f4<\/a>\uff0c\u8fd9\u9700\u8981\u82b1\u8d39\u5f88\u591a\u4eba\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u672c\u9875\u4e2d\uff0c\u6211\u4eec\u5c06\u4e86\u89e3\u5982\u4f55\u901a\u8fc7\u52a0\u6cd5\u6216\u8f85\u56e0\u5b50\u6c42\u89e3\u884c\u5217\u5f0f\uff0c\u4ee5\u53ca\u5982\u4f55\u8ba1\u7b97 4\u00d74 \u7ef4\u77e9\u9635\u7684\u884c\u5217\u5f0f\u3002\u4f46\u662f\uff0c\u8981\u6c42\u89e3 4 \u9636 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/cn\/4x4-%e8%a1%8c%e5%88%97%e5%bc%8f%e7%9a%84%e8%a1%a5%e5%85%85%e7%a4%ba%e4%be%8b%e5%92%8c%e5%b7%b2%e8%a7%a3%e5%86%b3%e7%9a%84%e7%bb%83%e4%b9%a0\/\"> <span class=\"screen-reader-text\">\u5982\u4f55\u901a\u8fc7\u8865\u96c6\u6216\u8f85\u56e0\u5b50\u8ba1\u7b97 4&#215;4 \u77e9\u9635\u7684\u884c\u5217\u5f0f<\/span> \u67e5\u770b\u5168\u6587 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