A
aranami_93


ai giúm mình bài này mới
[TEX]a,b,c>0\ \ CMR\ :\ \sqrt{\frac{a^3}{a^3+(b+c)^3}}+\sqrt{\frac{b^3}{b^3+(a+c)^3}}+\sqrt{\frac{c^3}{c^3+(b+a)^3}} \geq1[/TEX]
[TEX]a,b,c>0\ \ CMR\ :\ \sqrt{\frac{a^3}{a^3+(b+c)^3}}+\sqrt{\frac{b^3}{b^3+(a+c)^3}}+\sqrt{\frac{c^3}{c^3+(b+a)^3}} \geq1[/TEX]

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