Forgot password?
 Register account
View 248|Reply 4

[函数] 含参函数极值点范围

[Copy link]

277

Threads

547

Posts

5413

Credits

Credits
5413

Show all posts

力工 Posted 2023-7-22 22:31 |Read mode
遇到一道题,大家帮忙瞅瞅,怎么解?
已知$x=0$是函数$f(x)=(sin\sqrt{a}x)^2-ax^2cosx$的极大值点,求$a$的范围。

686

Threads

110K

Posts

910K

Credits

Credits
91229
QQ

Show all posts

kuing Posted 2023-7-22 22:43

277

Threads

547

Posts

5413

Credits

Credits
5413

Show all posts

 Author| 力工 Posted 2023-7-23 16:08
感觉做起来太夶太变态,㹜好复杂。

686

Threads

110K

Posts

910K

Credits

Credits
91229
QQ

Show all posts

kuing Posted 2023-7-23 16:54
力工 发表于 2023-7-23 16:08
感觉做起来太夶太变态,㹜好复杂。
夶?㹜?啥意思😅

277

Threads

547

Posts

5413

Credits

Credits
5413

Show all posts

 Author| 力工 Posted 2023-7-23 20:16
kuing 发表于 2023-7-23 16:54
夶?㹜?啥意思😅
地方话,相当于程度副词,指比“很、十分、非常”还“很”等等吧》

Mobile version|Discuz Math Forum

2025-5-31 10:31 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit