悠闲数学娱乐论坛(第3版)»论坛 › 数学区 › 初等数学讨论 › 一道不等式证明

Return to list New

View: 1952|Reply: 3

[不等式] 一道不等式证明

[Copy link]

48 Threads	77 Posts	778 Credits

Credits: 778

Send PM

longzaifei Post time 2014-12-12 19:32 |Read mode

证明：\[ t^4-t^3-7t^2+4t+19>0 \]

Reply

66 Threads	416 Posts	3566 Credits

Credits: 3566

Send PM

Tesla35 Post time 2014-12-12 23:12

等kk来配方吧

Reply

3 Threads	451 Posts	6183 Credits

Credits: 6183

Send PM

爪机专用 Post time 2014-12-12 23:32

回复 2# Tesla35
很松很好配，你也试试啊
我现在电脑上不了网，懒得打代码

Reply

3 Threads	451 Posts	6183 Credits

Credits: 6183

Send PM

爪机专用 Post time 2014-12-12 23:53

有办法了，用电脑打好代码，传到爪机上再回[得意]
\[x^4-x^3-7x^2+4x+19=\frac1{256}\bigl((16x^2-8x-59)^2+2(4x+5)^2+1333\bigr)\]

Reply

Return to list New

手机版|悠闲数学娱乐论坛(第3版)

2025-3-5 11:10 GMT+8

Powered by Discuz!

× Quick Reply To Top Return to the list