<p>设y=<img src="https://learnfile.20230611.cn/learnAppQuestion/36/a2/36a2a23c97364e3f4d8e0eaa7cedc034.jpg" style="width: 100%;height: auto;">te-tdt，则<img src="https://learnfile.20230611.cn/learnAppQuestion/7c/a1/7ca145ead0f4aa2a423634a9ca4d5062.jpg"