cho $a,b>0$ thỏa $\frac{2}{a} + \frac{1}{b} =1$
Tìm GTNN của: $a+b+\sqrt{a^2+b^2}$
Tìm GTNN của: $a+b+\sqrt{a^2+b^2}$
Started By nghiakvnvsdt, 03-01-2013 - 12:31
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