<p>设矩阵<img src="https://learnfile.20230611.cn/learnAppQuestion/90/aa/90aafd513c772b3069b85a55ab36446f.jpg" style="width: 100%;height: auto;">，则<img src="https://learnfile.20230611.cn/learnAppQuestion/fd/79/fd799ac63284337441fadfdf9822b295.jpg" style=