419| 2
|
[交流学习] 玩个游戏吧!楼上给楼下出题 |
| ||
发表于 2024-8-27 21:42
|
显示全部楼层
点评
幂指函数取对数,然后等式两端同时求导就OK
| ||
GMT+8, 2024-12-4 01:37 , Processed in 0.033470 second(s), 21 queries .
Powered by Discuz! X3.5
© 2001-2024 Discuz! Team.