Q.

Find the convolution sum of sequences x1[n] = (1, 2, 3) and x2[n] = (2, 1, 4).

A. {2, 5, 12, 11, 12}
B. {2, 12, 5, 11, 12}
C. {2, 11, 5, 12, 12}
D. {-2, 5,-12, 11, 12}
Answer» A. {2, 5, 12, 11, 12}
Explanation: x1[n] = δ(n)+2δ(n-1)+3δ(n-2) and x2[n] = 2δ(n)+δ(n-1)+4δ(n-2)
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