Asked by Alice

Given that the series the summation from n=1 to infinity of [(-1)^(n+1)/√n is convergent, find a value of n for which the nth partial sum is guaranteed to approximate the sum of the series to two decimal places.

a) 39,999
b) 3,999
c) 399
d) 39
Answered by Damon
well, the terms alternate + and - so if we find an n where the n th term magnitude - the n-1 th term magnitude difference is less than .015 we are there
Answered by Alice
I am sorry but I don't get it. Please help me more with this one. Thanks
Answered by oobleck
check the Remainder Theorem for alternating series
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