What is the connection between the natural logarithm and the limit of a series?

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SUMMARY

The discussion centers on evaluating the limit of the alternating series -1 + 1/2 - 1/3 + 1/4 ... (-1)^n/(n+1). The series converges, as confirmed by the ratio test. Participants suggest utilizing the Taylor expansion of the natural logarithm at x = 1 to draw parallels with the series, indicating a direct connection between the natural logarithm and the limit of the series.

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brunette15
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I am attempting to solve the limit for the following series:
-1 + 1/2 - 1/3 + 1/4 ... (-1)^n/(n+1)

I am able to determine that the series converges by applying the ratio test however i am having trouble evaluating the limit itself :/
 
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I would suggest taking a look at the Taylor expansion of the natural logarithm at $x = 1$. You should notice a similarity with your series.
 

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