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Determine the z - Transform of the following signal: a) x(n) = (().n25 ns4 b) x(n)= (1 + n)u(n) c) x(n) = (-1) cos

Determine the z - Transform of the following signal: a) x(n) = (()".n25 ns4 b) x(n)= (1 + n)u(n) c) x(n) = (-1)" cos (n) u(n)

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