9. [-/0.9 Points] DETAILS SCALCET8 11.8.007.MI. Find the radius of convergence, R, of the series. n = 2 5n! R: Find the interval, I, of convergence of the series. (Enter your answer using interval notation.) I= 10. [-/0.9 Points] DETAILS SCALCET8 11.8.507.XP. Find the radius of convergence, R, of the series. E ( x + 5)" n = 1 R : Find the interval, I, of convergence of the series. (Enter your answer using interval notation.) I = 11. [-/1 Points] DETAILS SCALCET8 11.8.517.XP. Find the radius of convergence, R, of the series. (4x + 5)7 n = 1 R = Find the interval, I, of convergence of the series. (Enter your answer using interval notation.) I=