Homework Help: calculus

Posted by Bob on Thursday, September 30, 2010 at 9:39pm.

Find the sum of the series (-1)^n (5^(2n))/n!

1. sum = e^25
2. sum = e^−5
3. sum = 5
4. sum = e^5
5. sum = 25
6. sum = e^−25

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