Forgot password
 Register account
View 1840|Reply 3

[不等式] 三元函数最值

[Copy link]

92

Threads

89

Posts

0

Reputation

Show all posts

aishuxue posted 2017-5-17 10:36 |Read mode
已知$a,b,c$均为非负实数,且$a+b+c=1$,求$a^2b+b^2c+c^2a$的最小值。

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2017-5-17 11:30
已知$a,b,c$均为非负实数,且$a+b+c=1$,求$a^2b+b^2c+c^2a$的最小值。
aishuxue 发表于 2017-5-17 10:36
最小值?这还用问吗,显然是0啊,当 (a,b,c)=(0,0,1) 时

92

Threads

89

Posts

0

Reputation

Show all posts

original poster aishuxue posted 2017-5-17 12:09
不好意思是求其最大值。

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2017-5-17 12:13
回复 3# aishuxue

那看这个帖就好了 forum.php?mod=viewthread&tid=281

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 13:56 GMT+8

Powered by Discuz!

Processed in 0.012491 seconds, 22 queries