http://latex.codecogs.com/gif.latex?...e^{n}+e^{-n})}

code: \sum_{n=1}^{\infty}\frac{(-1)^{n}}{\log (e^{n}+e^{-n})}

(Evaluate)

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- Jan 15th 2010, 01:20 AMstudent1[SOLVED] Possibly simple series question
http://latex.codecogs.com/gif.latex?...e^{n}+e^{-n})}

code: \sum_{n=1}^{\infty}\frac{(-1)^{n}}{\log (e^{n}+e^{-n})}

(Evaluate) - Jan 15th 2010, 03:01 AMShanks
It is a alternating series and , thus converges.

- Jan 15th 2010, 09:32 AMstudent1
Thanks, good point. What about absolutely?

- Jan 15th 2010, 05:08 PMmr fantastic
- Jan 16th 2010, 12:25 AMtonio