College Calculus (Binomial Series)
posted by Andrew .
Expand f(x) = (x+x^2)/((1x)^3) as a power series and use it to find the sum of series (SUM from n=1 to infinity) (n^2)/(2^n)
PLEASE HELP.

Taylor series is as follows:
f(x)=f(a)+f'(a)(xa)/1!+f''(a)(xa)^2/2!+f'''(a)(xa)^3/3!+...
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