Với $3\leq n \epsilon \mathbb{N}$, chứng minh rằng:
$\frac{1}{\sqrt[n-1]{n!}}+\frac{1}{\sqrt[n-1]{n}}\leq 1$
Chứng minh rằng: $\frac{1}{\sqrt[n-1]{n!}}+\frac{1}{\sqrt[n-1]{n}}\leq 1$
Started By gbao198, 12-06-2013 - 09:27
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