<p>设随机变量<img src="https://learnfile.20230611.cn/learnAppQuestion/35/21/3521f4f1e4a348e3a26896dc71c81fa9.jpg" style="width: 100%;height: auto;">,则Y的概率密度<img src="https://learnfile.20230611.cn/learnAppQuestion/5d/3b/5d3beeed19912c8ca0e07fbe5923be46.jpg