1.

Given below impulse response of two system h1(n) = [x(n + 1) - 2x(n) + 3x(n - 1)] h2(t) = e-2t u(4 - t) The correct statement is:

A. h1(n) non causal and stable h2(t) non causal and stable
B. h1(n) non causal and stable h2(t) non causal and non-stable
C. h1(n) causal and not stable h2(t) non causal and stable
D. h1(n) causal and stable h2(t) non causal and non-stable
Answer» C. h1(n) causal and not stable h2(t) non causal and stable


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