Question: For each of the following sequences, determine the z- transform and region of convergence, and sketch the pole-zero Diagram: (a) x[n] = a n u[n]

For each of the following sequences, determine the z- transform and region of convergence, and sketch the pole-zero Diagram:

(a) x[n] = anu[n] + bnu[n] cnu[? n ? 1],? ? ? ? ? ?? |a|

(b) x[n] = n2anu[n]

(c)

(cos ()] ulr] e* [cos () x|n] = en* - 11

(cos ()] ulr] e* [cos () x|n] = en* - 11

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