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electronics and communication engineering exam question papers
1. Consider the z-transform X(z) = 5z2 + 4z-1 + 3; 0 < |z| < ∞ The inverse transform x[n] is
(A): 5δ[n + 2] + 3δ[n] + 4δ[n - 1]
(B): 5δ[n - 2] + 3δ[n] + 4δ[n + 1]
(C): 5u[n + 2] + 3u[n] + 4u[n - 1]
(D): 5u[n - 2] + 3u[n] + 4u[n + 1]
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By: guest on 02 Jun 2017 12.55 am
X(z) = 5z2 + 4z-1 + 3 = .
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