Forgot password?
 Register account
Author: isee

[函数] 2018年全国卷I理科第16题 三角函数

[Copy link]

7

Threads

578

Posts

3956

Credits

Credits
3956

Show all posts

游客 Posted 2018-6-13 16:31
半径为1的圆的内接三角形的最大面积?

413

Threads

905

Posts

110K

Credits

Credits
10989

Show all posts

lemondian Posted 2018-7-29 01:36
Last edited by hbghlyj 2025-5-3 21:05回复 13# kuing

kuing:你看看这个:(网上看到的)
设 $a$ 是实常数,求函数 $f(x)=a \sin x+\sin 2 x(x \inR)$ 的最小值。
001Qxx0Tzy7l6hJKFmc44&690.jpg
001Qxx0Tzy7l6nIS8GSb2&690.jpg

686

Threads

110K

Posts

910K

Credits

Credits
91229
QQ

Show all posts

kuing Posted 2018-7-29 01:56
回复 22# lemondian

懒得看,也懒得验证结果是否与我的等价

Mobile version|Discuz Math Forum

2025-5-31 11:16 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit