Signals and Systems - Engineering

Q1:

If X(z) = 2az-1/(1 - az-1)3 and |a| < |z|, then the initial value x0 is

A 0

B 1

C

D 2

ANS:A - 0

Apply initial value theorem, here z is infinite so 1/z value is 1/infinite so the value is 0.