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).

Determine the impulse response for the cascade of two LTI systems havi

1.	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» C. (1/2)n[2+(1/2)n], n<0