yet another series question: sum[n=1,infty][sin(1/n^2)ln(n)]

cheffy

Junior Member
Joined
Jan 10, 2007
Messages
73
Last one, I swear!

\(\displaystyle \
\sum\limits_{n = 1}^\infty {\sin \left( {\frac{1}{{n^2 }}} \right)\ln (n)}
\\)

Does this converge or diverge?

I can't substitute so what test would I do?

Thank you!
 
I tried the integral test.

\(\displaystyle \L\\\int_{1}^{\infty}[sin(\frac{1}{n^{2}})ln(n)]dn=0.993435049565\)

Since the integral converges, so doth the series.

I ran this through Maple. The definite integral to this was awesome. It was huge and had terms in it I am not familiar with. If I can, I will post it for kicks.
 
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