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问题详情

设A={a11 a12 a13} {a21 a22 a23} {a21 a22 a23} B={a11 a12 a13} {a31 a33 a33} {a31+a11 a32+a12 a33+a13}

A、AP1P2=B

B、AP2P1=3

C、P1P2A=B

D、P2P1A=B

时间：2021-09-08 14:16 关键词：青书学堂长春工程学院工程数学(专升本)

答案解析

C

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