The Radius of convergence of f(n) = 5^n/n!, n≥0 is __________
(a) -2<|z|<2
(b) Z-plane
(c) | z |<2
(d) |z| = 2
This question was posed to me by my school teacher while I was bunking the class.
Question is from Region of Convergence topic in division Laplace Transform and System Design of Signals and Systems