Question: The z-transform of a sequence x(n) is given by Furthermore it is know that X(z) converges for |z| = 1 (a) Determine the ROC of

The z-transform of a sequence x(n) is given by

:20 X(2) > || z> l:| > (: - )(: - 2)5(2

Furthermore it is know that X(z) converges for |z| = 1

(a) Determine the ROC of X(z).

(b) Determine x(n) at n =-18.

:20 X(2) > || z> l:| > (: - )(: - 2)5(2 +(: + 3) 2

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