I need help with this problem

C. Which method is easier? Why? 6. A, If a power series in (x - c) has a radius of convergence R, what can you say about the set of x-values at which it converges? B. If you have the Maclaurin series for f ( x ) = e and the Maclaurin series for g ( x ) = sin x , how can you find the Maclaurin series for h( x ) = e . sin x