Comment on the causality of y[n] = n*x[n]
A. Time invariant
B. Time varying
C. Non causal
D. Causal
Answer:A
Comment on the causality of y[n] = n*x[n]
A. Time invariant B. Time varying C. Non causal D. Causal
Explanation: For positive time, the system may seem to be causal. For negative time, the output depends on the same time instant, thus making it causal. 10. Comment on the linearity of y[n] = n*x[n]