Consider two discrete-time signals:x1(n) = {1, 1} and x2(n) = {1, 2}, – McqOptions

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1.	Consider two discrete-time signals:x1(n) = {1, 1} and x2(n) = {1, 2}, for n = 0, 1.The Z-transform of the convoluted sequence x(n) = x1(n) * x2(n) is
A.	1 + 2z-1 + 3z-2
B.	z2 + 3z + 2
C.	1 + 3z-1 + 2z-2
D.	z-2 + 3z-3 + 2z-4
Answer» D. z-2 + 3z-3 + 2z-4

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