ËX0TiCXx6 2020-06-30T15:13:58+00:00 这个不是复合函数吗?为啥求导e的乘方不用再乘一遍[s:ac:晕][s:ac:晕][s:ac:晕][img]https://img.nga.178.com/attachments/mon_202007/07/-7Q5-a97pK12T3cSlc-sg.jpg.medium.jpg[/img]