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设A为2阶矩阵,将A的第1行与第2行互换得到矩阵B,再将B的第2行加到第1行得到单位矩阵,则A= A. B.

高老师2年前 (2024-03-27)线性代数(02198)13

设A为2阶矩阵,将A的第1行与第2行互换得到矩阵B,再将B的第2行加到第1行得到单位矩阵,则A= A. B.

A.

B.

C.

D.

正确答案是A

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