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[不等式] 一道不等式证明

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

证明：\[ t^4-t^3-7t^2+4t+19>0 \]

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Tesla35 Post time 2014-12-12 23:12

等kk来配方吧

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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

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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]
\[x^4-x^3-7x^2+4x+19=\frac1{256}\bigl((16x^2-8x-59)^2+2(4x+5)^2+1333\bigr)\]

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