- #1
bcjochim07
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Homework Statement
Find the interval of convergence of f'(x)
f(x) Sum from n=1 to infinity [(x-5)^n*(-1)^n]/[n5^n]
Homework Equations
The Attempt at a Solution
My problem is I am unsure how to take the derivative with the n's and x's should I treat n as a constant?
After that, I think I can get the interval of convergence.