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AND:
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NO:

Found problems: 1

2006 Cezar Ivănescu, 1
Tags: harmonic series , Newton s binom , fatorial , limit , Integral , calculus
[b]a)[/b] $ \lim_{n\to\infty } \frac{1}{n^2}\sum_{i=0}^n\sqrt{\binom{n+i}{2}} $ [b]b)[/b] $ \lim_{n\to\infty } \frac{a^{H_n}}{1+n} ,\quad a>0 $