2020-05-26
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|AA^T|为什么等于|A|^2?
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这是行列式的一个性质,A^T是矩阵的转置,AA^T是矩阵乘法,|AA^T|是矩阵行列式的计算
A的行列式与A转置的行列式是一样的
|AA^T|=|A||A^T|=|A||A|=|A|^2
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