Determine the impulse response for the cascade of two LTI systems having impulse responses h1(n)=(1/2)2 u(n) and h2(n)= (1/4)2 u(n).
A. (1/2)n[2-(1/2)n], n<0
B. (1/2)n[2-(1/2)n], n>0
C. (1/2)n[2+(1/2)n], n<0
D. (1/2)n[2+(1/2)n], n>0
Answer:A
Determine the impulse response for the cascade of two LTI systems having impulse responses h1(n)=(1/2)2 u(n) and h2(n)= (1/4)2 u(n).
A. (1/2)n[2-(1/2)n], n<0 B. (1/2)n[2-(1/2)n], n>0 C. (1/2)n[2+(1/2)n], n<0 D. (1/2)n[2+(1/2)n], n>0
Explanation: Let h2(n) be shifted and folded.