- #1
Yagoda
- 46
- 0
Homework Statement
Using that [itex]\frac{1}{1-x} = \sum_{n=0}^{\infty} x^n [/itex] for |x|<1 and that
[itex] f'(x) =\sum_{n=0}^{\infty} (n+1)a_{n+1}(x-x_0)^n [/itex], write [itex] \sum_{n=0}^{\infty} n^2x^n [/itex] in closed form.