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August 27, 2015

Homework Help: Calculus

Posted by Sophie on Tuesday, May 5, 2009 at 12:21am.

The problem I have is a summation from 1 to infinity for (-1)^n/n. I have to find a partial sum that is in 0.001 of the infinite sum, my teacher says the fourth partial sum approximates the infinite sum, which is -7/12. I think to get within 0.001 of the infinite sum, do I have to take 999 terms. However, I don't know how right that is, so a little help would be good.

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