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Signals and Systems

Q1:

The z transform of sequence x[n] = {2, 4, 3, 2}

A 2z-1 + 4z-2 + 3 + 2z+1

B 2z-1 + 3 + 4z+1 + + 2z+2

C 2z+1 + 3z-1 + 4z-2 + 2z-3

D 3 + 2z-1 + 4z-2 + 2z-1

ANS:D - 3 + 2z-1 + 4z-2 + 2z-1

n(z) = 2z+2 + 4z+1 + 3 + 2z-1 or 2z-1 + 3 + 4z+1 + 2z+2 .



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