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设A、B为同阶方阵,则必有().
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线性代数(经管类)(04184)
发表:2024年09月12日 09时09分53秒
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设A、B为同阶方阵,则必有().
A、|A+B|=|A|+|B|
B、AB=BA
C、(AB)T=ATBT
D、|AB|=|BA|
【正确答案】:D
【题目解析】:【答案解析】本题考查方阵的行列式.|AB|=|A||B|=|B||A|=|BA|.参见教材P45. (2013年1月真题)
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