February 26, 2017

Homework Help: calculus

Posted by sarah on Sunday, March 2, 2008 at 8:17pm.

for each series determine if the series is absolutely convergent and convergent

the sum from 0 to infinity of (-1)^n/(the square root of (n+1))

I did the ratio test and got -1, which is less than 0 making it absolutely convergent, but do i need to take the absolute value of -1? which would then make the test inconclusive?

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