Question: Sketch each of the following sequences and determine their z-transforms, including the region ofconvergence: (a) SIn-4k] k=- sin ( +27n)] u[n] + 27n) u[n] (b)

Sketch each of the following sequences and determine their z-transforms, including the region ofconvergence:

(a) SIn-4k] k=- sin ( +27n)] u[n] + 27n) u[n] (b) +

(a) SIn-4k] k=- sin ( +27n)] u[n] + 27n) u[n] (b) + COS n +

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