Question

Determine the z-transform and ROC of the signal x(n)=[3(2 n )-4(3 n )]u(n)

Answer 1

Answer:

ROC of z-transform is indicated with circle in z-plane. ROC does not contain any poles. If x(n) is a finite duration causal sequence or right sided sequence, then the ROC is entire z-plane except at z = 0. ... If x(n) is a finite duration two sided sequence, then the ROC is entire z-plane except at z = 0 & z = ∞....