1. [-71. Find the radius of convergence, R, of the series. [-1)5x n = 1 Vn R= Find the interval, I, of convergence of the series. (Enter your answer using interval notation.) 8. [-/1.04 Points] DETAILS SCALCET8 11.8.014. Find the radius of convergence, R, of the series. x9n n ! R = Find the interval, I, of convergence of the series. (Enter your answer using interval notation.) 9. [-/1.04 Points] DETAILS SCALCET8 11.8.017. Find the radius of convergence, R, of the series. ( x + 8)7 n = 2 87 In(n) R= Find the interval, I, of convergence of the series. (Enter your answer using interval notation.) I =