hey- how do i find a power series for f'(x) if

f(x)= sum from n=0 to n=infinity [(-1^n)*x^(2n)]/[(2n)!]

thanks.

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- Feb 27th 2006, 07:55 PM #1ilovecalculusGuest

- Feb 27th 2006, 08:58 PM #2

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