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Possible Duplicate:
Series converges implies $\lim{n a_n} = 0$

How do I show that the following:

If $ a_1 \geq a_2\geq ... \geq a_n\geq...$ and $\sum a_n$ converges then $\lim (n a_n) = 0$?

Thanks.

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    thanks, that was the same question.2012-01-14

0 Answers 0