Reason (R): For a causal stable system all the poles should be outside the unit circle in the z-plane.
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true bit R is NOT the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer:C
Reason (R): For a causal stable system all the poles should be outside the unit circle in the z-plane.
A. Both A and R are true and R is the correct explanation of A B. Both A and R are true bit R is NOT the correct explanation of A C. A is true but R is false D. A is false but R is true
Explanation: A causal system LTI system is stable if and only if all of poles of H(z) lie inside the unit circle.