INEQUALITY'S BLOG

August 10, 2010

Problem 048

Filed under: Uncategorized — KKKVVV @ 1:31 pm

(Van Khea): Let a, b, c>0. Prove that:

\displaystyle \biggl(\frac{a^3}{bc}+\frac{b^3}{ca}+\frac{c^3}{ab}\biggl)(a^3+b^3+c^3)\geq (ab+bc+ca)^2

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