a,b,c>0, a+b+c=1.CMR:$\sum \frac{a}{\sqrt{2a^{2}+2a+b}}\leq 1$
$\sum \frac{a}{\sqrt{2a^{2}+2a+b}}\leq 1$
Started By cachcach10x, 06-09-2015 - 15:48
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