1.

Determine the impulse response for the cascade of two LTI systems having impulse responses h1(n)= (( frac{1}{2})^2 ) u(n) and h2(n)= (( frac{1}{4})^2 ) u(n).

A. (( frac{1}{2})^n[2-( frac{1}{2})^n] ), n<0
B. (( frac{1}{2})^n[2-( frac{1}{2})^n] ), n>0
C. (( frac{1}{2})^n[2+( frac{1}{2})^n] ), n<0
D. (( frac{1}{2})^n[2+( frac{1}{2})^n] ), n>0
Answer» C. (( frac{1}{2})^n[2+( frac{1}{2})^n] ), n<0


Discussion

No Comment Found