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4. For discrete time signal x[n] defined as below,
x[n] = {3, 0, 0, 0, 3}
(a) Find DTFT X(ej®) and sketch its magnitude | X(ej) | over -n< @ < T.

For discrete time signal x[n] defined as below,
x[n]= {3, 0, 0, 0, 3}

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