Q. 62 Let P be linearity, Q be time-invariance, R be causality and S be stability. A discrete time system has the input-output relationship,
where x(n) is the input and y(n) is the output. The above system has the
properties
(A) P, S but not Q, R
(B) P, Q, S but not R
(C) P, Q, R, S
(D) Q, R, S but not P
Answer: (A)
Explanation: