问题
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设A B均为n阶非零矩阵 且AB=0 则R(A) R(B)满足( )。 A.必有一个等于0 B.都
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设A B均为n阶非零矩阵 且AB=0 则R(A) R(B)满足( )。 A.必有一个等于0 B.都
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设A B均为n阶非零矩阵 且AB=0 则R(A) R(B)满足( )。 A.必有一个等于0 B.都
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设A B是n阶矩阵 且B≠0 满足AB=0 则以下选项中错误的是:A.r(A)+r(B)≤n B.
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设A B均为n阶非零矩阵 且AB=0 则R(A) R(B)满足( )。 A.必有一个等于0B.都小于n###SXB##
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设A B均为n阶矩阵 且A可逆 若AB=O 则|B|≠0。()
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