Cho $a,b,c>0$. CMR: $\sum \frac{a^4}{a^3+b^3} \geq \frac{a+b+c}{2}$
$\sum \frac{a^4}{a^3+b^3} \geq \frac{a+b+c}{2}$
Started By melodias2002, 07-02-2018 - 15:26
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Posted 07-02-2018 - 17:50
Khoa Linh
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Cho $a,b,c>0$. CMR: $\sum \frac{a^4}{a^3+b^3} \geq \frac{a+b+c}{2}$
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