Express the function as the sum of a power series by rst using partial fractions. fix}=xz_::_24 WZICJ Find the interval of convergence. (Enter your answer using interval notation.) S [3) Use differentiation to find a power series representation for x) = U +le \"m = US ) What is the radius of convergence, R? {b} Use part (a) to nd a power series for 4 [7' +x)3' x>=,(E) What is the radius of convergence, R? (c) Use part (b) to nd a power series for fix} = x) = U in? "m = US ) What is the radius of convergence, R? Find a power series representation for the function. (Give your power series representation centered at x = D.) x)=lnl[3x) x n "2:3 ) Determine the radius of convergence, R