忘得差不多了,只记得有一个：
两个n阶矩阵的乘积为零矩阵,则两个n阶矩阵的秩之和小于等于n
两个矩阵的乘积为零矩阵,那么这两个矩阵的秩之间有什么关系?
两个矩阵的乘积为零矩阵,那么这两个矩阵的秩之间有什么关系?
数学人气：327 ℃时间：2019-08-20 21:33:55
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