线代问题，求大佬解答 线代问题求解 线性代数
\u7ebf\u4ee3\u6c42\u52a9\uff0c\u6c42\u5927\u4f6c\u5e2e\u5fd9\u89e3\u7b54\u4e00\u4e0b\uff1f|-\u03b11+3\u03b12+\u03b13\uff0c\u03b12\uff0c\u03b13|
=|-\u03b11+3\u03b12\uff0c\u03b12\uff0c\u03b13| \u7b2c\u4e00\u5217\u51cf\u7b2c\u4e09\u5217
=|-\u03b11\uff0c\u03b12\uff0c\u03b13| \u7b2c\u4e00\u5217\u51cf\u7b2c\u4e8c\u5217\u7684 2 \u500d
=-|A|=-3
属于特殊行列式 具体步骤在纸上 可以看一下
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