问题详情

设矩阵,求 (1) ; (2) .


时间:2021-07-17 20:16 关键词:

答案解析

<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15422468546552f5f176cc15240ac8262ed68750b985e.png" alt="上传图片"><br>