c/minh bdt

L

lethiquynhhien

[TEX]2\sqrt[2]{a}+3\sqrt[3]{b}=\sqrt[2]{a}+\sqrt[2]{a}+\sqrt[3]{b}+\sqrt[3]{b}+\sqrt[3]{b}\geq 5\sqrt[5]{ab}[/TEX]
 
L

lethiquynhhien

ừ, mình quên mất, chưa cho b dương nhỉ.........|-) |-) |-)
 
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