## A series

- Tolaso J Kos
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**Posts:**867**Joined:**Sat Nov 07, 2015 6:12 pm**Location:**Larisa-
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### A series

Evaluate the series

$$\mathcal{S} = \sum_{n=1}^{\infty} (-1)^{n-1} \ln \frac{n+1}{n}$$

$$\mathcal{S} = \sum_{n=1}^{\infty} (-1)^{n-1} \ln \frac{n+1}{n}$$

**Imagination is much more important than knowledge.**

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