- #1

shanepitts

- 84

- 1

## Homework Statement

Find a power series representation for the function below & determine the radius of convergence.

f (x)=(1+x)/(1-x)

^{2}

2.Relevant equation

Shown in attached image below which is the solution the problem.

3.The attempt at a solution

I'm trying to fathom the solution here.

I am pretty sure the initial value is the value of n. If so, it does not seem that the starting values were made equal here. Unless it has something to do with the 1+ ∑ that shows up on the fourth line?

Please help