<p>设矩阵P=<img alt="" width="59" height="44" style="width: 100%;height: auto;" src="https://learnfile.20230611.cn/learnAppQuestion/62/19/62197dd18b589d59452c50976b2cb73c.png"><span style="font-size: 14px;">，D=<img alt="" width="52" height="44" style="w