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Prove that $\left (\frac{a^2 + b^2 +c^2}{a+b+c} \right) ^ {(a+b+c)} > a^a b^b c^c$

elementary-number-theory natural-numbers asked Aug 23 '12 at 16:26

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Composite number

homework elementary-number-theory asked Jun 10 '12 at 21:10

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$\epsilon{\rm -}\delta$ proof of the discontinuity of Dirichlet's function

homework calculus real-analysis asked Mar 23 '12 at 18:56

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How to show that that $\sum_{n=1}^{\infty} \frac{1}{3n-1} + \frac{1}{3n-2}- \frac{2}{3n}= \ln(3)$?

sequences-and-series limit asked Sep 16 '12 at 15:37

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