首页 > 学历类 > 研究生考试 > 工程硕士 > 数学基础能力测试 > 设 A,B 都是 n 阶矩阵 (n>1) ,则下列命题正确的是( ).

设 A,B 都是 n 阶矩阵 (n>1) ,则下列命题正确的是( ).

A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
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正确答案: C
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A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
A.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341342246129.png" />
B.AB=0,且 A≠0,则 B=0
C.[img src="https://img.haodaxue.net/uploadimg/ico/2020/0605/1591341390180957.png" />
D.若 AB=AC,且 A≠0,则 B=C
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