Two discrete time systems with impulse responses h1[n] = Œ¥[n - 1] a – McqOptions

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1.	Two discrete time systems with impulse responses h1[n] = Œ¥[n - 1] and h2[n] = Œ¥[n - 2] are connected in cascade. The overall impulse response of the cascaded system is
A.	Œ¥[n - 1] + Œ¥[n - 2]
B.	Œ¥[n - 4]
C.	Œ¥[n - 3]
D.	Œ¥[n - 1] + Œ¥[n - 2]
Answer» D. Œ¥[n - 1] + Œ¥[n - 2]

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