Forgot password
 Register account
View 1960|Reply 4

[不等式] 请教如何求解方程组

[Copy link]

205

Threads

263

Posts

1

Reputation

Show all posts

hjfmhh posted 2018-8-27 16:24 |Read mode
Q_D0}PZ.jpg

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2018-8-27 16:37
懒得看,这道题是吧?:
forum.php?mod=viewthread&tid=4632
很简单啊,根本不用扯那么多

205

Threads

263

Posts

1

Reputation

Show all posts

original poster hjfmhh posted 2018-8-27 18:05
回复 2# kuing

谢谢换元技巧太好了,但是很想知道这种方程组怎么求解?

205

Threads

263

Posts

1

Reputation

Show all posts

original poster hjfmhh posted 2018-8-27 18:07
R%3_2JKPRJW2)8RN(JW~PZ7.png

7

Threads

578

Posts

9

Reputation

Show all posts

游客 posted 2018-8-28 11:47
Last edited by 游客 2018-8-28 11:551楼第一行结果再加个三角形式,然后出现双曲线与直线的相关问题,也简单。
4楼方程组后两式平方和就有了,然后还想什么呢?答案都说有很多情况达到的。。。。。。

Quick Reply

Advanced Mode
B Color Image Link Quote Code Smilies
You have to log in before you can reply Login | Register account

$\LaTeX$ formula tutorial

Mobile version

2025-7-15 15:31 GMT+8

Powered by Discuz!

Processed in 0.013064 seconds, 26 queries