Let x(n) = {0, 1, 2, 3}. 1. Compute its discrete-time Fourier transform X(ej"). 2. Sample X (e) at ko 2 k, k = 0,1,2,3. 4 Show that it is equal to (k). Let x(n) = {0, 1, 2, 3}. 1. Compute its discrete-time Fourier transform X(ej"). 2. Sample X (e) at ko 2 k, k = 0,1,2,3. 4 Show that it is equal to (k)