Find the (z)-transform of (a) (quad x[n]=2^{n} u[n-2]) (b) (quad x[n]=left(frac{1}{4}ight)^{n} u[-n])
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Find the \(z\)-transform of
(a) \(\quad x[n]=2^{n} u[n-2]\)
(b) \(\quad x[n]=\left(\frac{1}{4}ight)^{n} u[-n]\)
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