K
kimsaranh


cho a, b la` 2 so' thuc duong t/m : [tex]a+b\leq1[/tex]
tim` min cua?
[tex]S=a+b+\frac{1}{a}+\frac{1}{b}[/tex]
thanks nhiu`
:
tim` min cua?
[tex]S=a+b+\frac{1}{a}+\frac{1}{b}[/tex]
thanks nhiu`
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