Where h*x denotes h convolved with x, x[n]*d[n-90] reduces to
A. x[n-89]
B. x[n-91]
C. x[n=90]
D. x[n]
Answer:A
Where h*x denotes h convolved with x, x[n]*d[n-90] reduces to
A. x[n-89] B. x[n-91] C. x[n=90] D. x[n]
Explanation: The function gets shifted by the center of the delta function during convolution.