<p>设3阶矩阵<img alt="" width="126" height="153" class="" src="https://learnfile.20230611.cn/learnAppQuestion/89/c5/89c52779362ee2fe3152e7f3d8266b18.png" style="width: 100%;height: auto;">，则<img alt="" width="26" height="32" src="https://learnfile.202306