M
mathematician_287


Cho x,y,z >0 thỏa mãn xyz=1. CMR:
[TEX]\frac{x^2(y+z)}{y\sqrt[]{y}+2z\sqrt[]{z}}+\frac{y^2(y|+z}{z\sqrt[]{z}+2x\sqrt[]{x}}+\frac{z^2(x+y)}{x\sqrt[]{x}+2y\sqrt[]{y}}\geq2[/TEX]
[TEX]\frac{x^2(y+z)}{y\sqrt[]{y}+2z\sqrt[]{z}}+\frac{y^2(y|+z}{z\sqrt[]{z}+2x\sqrt[]{x}}+\frac{z^2(x+y)}{x\sqrt[]{x}+2y\sqrt[]{y}}\geq2[/TEX]