Determine the z-transform of the sequence x(n) = 3"u(n – 3) using z-transform properties. Express X(z) as a rational function in z-1. 9: -3 9z-3 27 z-3 27 :-3 d.- 1+3z-! a. b.- C. 1- 92-1 1+9 z-! 1-32-1

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