Discuz Math Forum»Forum › Mathematics › High School › 菜鸟求解答

Return to list New

View 1657|Reply 4

[不等式] 菜鸟求解答

[Copy link]

4 Threads	11 Posts	76 Credits

Credits: 76

Send PM

qinxianming82 Posted 2016-6-16 14:51 |Read mode

$已知：a+b+c=3,求证（a^2b+b^2c+c^2a)(ab+bc+ca)<=9

Reply Edit

686 Threads	110K Posts	910K Credits

Credits: 91229

Send PM

kuing Posted 2016-6-16 14:53

见《撸题集》第 900 页题目 6.7.15.

Reply Edit

4 Threads	11 Posts	76 Credits

Credits: 76

Send PM

Author| qinxianming82 Posted 2016-6-16 15:00

谢谢！但是我不知道什么是撸题集

Reply Edit

686 Threads	110K Posts	910K Credits

Credits: 91229

Send PM

kuing Posted 2016-6-16 15:03

看论坛置顶帖。

Reply Edit

4 Threads	11 Posts	76 Credits

Credits: 76

Send PM

Author| qinxianming82 Posted 2016-6-16 15:04

我在网上找到了，十分感谢！您的功力真深厚！

Reply Edit

Return to list New

Mobile version|Discuz Math Forum

2025-5-31 11:23 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit