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[TEX][/TEX]
Cho a;b>0. Chứng minh BĐT
$\sqrt[]{a^2 + b^2}>\sqrt[3]{a^3 + b^3 }$
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Cho a;b>0. Chứng minh BĐT
$\sqrt[]{a^2 + b^2}>\sqrt[3]{a^3 + b^3 }$
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