矩阵的单独一列或者一行变成K倍算是等价变换吗? 矩阵初等变换中<以数k(k不为0)乘某一行中所有元素;>与其...
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1\u3001\u4ea4\u6362\u77e9\u9635\u7684\u7b2ci\u884c\u4e0e\u7b2cj\u884c\u7684\u4f4d\u7f6e\u3002
2\u3001\u4ee5\u975e\u96f6\u6570k\u4e58\u4ee5\u77e9\u9635\u7684\u7b2ci\u884c\u7684\u6bcf\u4e2a\u5143\u7d20\u3002
3\u3001\u628a\u77e9\u9635\u7684\u7b2ci\u884c\u7684\u6bcf\u4e2a\u5143\u7d20\u7684k\u500d\u52a0\u5230\u7b2cj\u884c\u7684\u5bf9\u5e94\u5143\u7d20\u4e0a\u53bb\u3002
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ab
cd
r1\uff0br2\uff0cr2\uff0br1
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a\uff0bcb\uff0bd
a\uff0b2cb\uff0b2d
\u800c\u4e0d\u662f
a\uff0bcb\uff0bd
c\uff0bad\uff0bb\u3002
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