Cho x,y,z dương. Chứng minh rằng:
$\frac{x^2}{y}+\frac{y^2}{z}+\frac{z^2}{x}\geq 3\sqrt[4]{\frac{x^4+y^4+z^4}{3}}$
CMR: $\frac{x^2}{y}+\frac{y^2}{z}+\frac{z^2}{x}\geq 3\sqrt[4]{\frac{x^4+y^4+z^4}{3}}$
Started By Baoriven, 02-07-2016 - 15:41
#1
Posted 02-07-2016 - 15:41
Baoriven
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