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- August 13th 2012, 11:54 PMalbert940410proof of inequality

- August 14th 2012, 10:09 AMFernandoRevillaRe: proof of inequality
- August 14th 2012, 05:50 PMrichard1234Re: proof of inequality
You could use Lagrange multipliers or a similar technique, but I'm pretty sure this can be solved without calculus (e.g. Muirhead's inequality or AM-GM).