Show transcribed image text (2a-3)7 Let an (x)-PH3- an+1 (a) What is the ratio ? an 國國 (b) What is the limit of this ratio as n → oo? (c) Enter the left-hand end of the interval of convergence Number (d) Enter a formula for an (z) at the left-hand end of the interval of convergence (e) Does the infinite sum converge at the left-hand end of the interval of convergence? (Click for List) | ▼ (f) Enter the right-hand end of the interval of convergence Number (g) Enter a formula for an (z) at the right-hand end of the interval of convergence 颱 (h)Does the infinite sum converge at the right-hand end of the interval of convergence? (Click for List)