M
minhtri903


Cho a,b,c>0.CMR:
[TEX]\frac{a^2}{b}+\frac{b^2}{c}+\frac{c^2}{a} \geq a+b+c+4\frac{(a-b)^2}{a+b+c}[/TEX]
Dấu "=" xảy ra khi nào ?
[TEX]\frac{a^2}{b}+\frac{b^2}{c}+\frac{c^2}{a} \geq a+b+c+4\frac{(a-b)^2}{a+b+c}[/TEX]
Dấu "=" xảy ra khi nào ?