R(A+B)＜=R(A)+R(B): R(AB)＜=min(R(A)+R(B)): A为m×n矩阵,r（A）＝n,则AX＝0只有零解。设矩阵A为m×n的秩R（A）=m；Ax=b 有解；

ZhangJiQun&MXP 发布时间：2019-11-26 20:39:19 ，浏览量：0

R(A+B)

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R(A+B)＜=R(A)+R(B): R(AB)＜=min(R(A)+R(B)): A为m×n矩阵,r（A）＝n,则AX＝0只有零解。设矩阵A为m×n的秩R（A）=m；Ax=b 有解；

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