1. The problem statement, all variables and given/known data Consider the power series centered at a= 0: Σkx^(k+1) From 1 to infinity (a) Find its radius of convergence, R, and its interval of convergence. = DONE (b) For x in the interval (-R,R) find the sum of the power series. Help? 2. Relevant equations N/a 3. The attempt at a solution So here's what I have already. For Part a, I calculated the radius of convergence to be 1 and the interval to be from -1<x<1. So we know that R = 1 and it's asking us the sum of the power series (-1, 1). The problem I am having conceptually is, how do you get the sum when x is -1 and 1? My only idea is to find the sum of the power series when x = 1 and the sum when x=-1 and then add them? Is this correct? If I am not thinking this correctly, please help me decipher what the question is asking. Thank you.