INEQUALITY'S BLOG

July 26, 2010

(Van Khea):Problem 001

Filed under: the new math — KKKVVV @ 3:11 pm

Let -1\leq x,y,z\leq 1 . Prove that:

(1-xyz)^3\geq (1+xyz)(1-x^2)(1-y^2)(1-z^2)

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