1.

If h1[n] = 3δ[n] + δ[n - 1], h2[n] = 2δ[n] + δ[n - 2]h3[n] = δ[n] - 3δ[n - 1] + 7δ[n - 4] + 6δ[n - 6]h[n] = h1[n] * h2[n] + h3[n] * h1[n] has value

A. {6, 18, 7, 4, 0, - 6, 9}
B. {9, 0, - 6, 21, 7, 6, 1}
C. {7, - 1, 3, 1, 7, 0, 6}
D. {9, - 6, 0, 1, 21, 7, 18, 6}
Answer» E.


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