. Compute the DTFT of the discrete-time signal shown in the Figure below.
(Please see attachment)
2. For a discrete-time signal x[n] with the DTFT where b is an arbitrary constant X(omega) = 1/(exp(j*omega)+b) compute the DTFT V(Ω) of v[n] = x[n] – x[n-1]
3. Compute the inverse DTFT of X(ω)=cos2Ω
4. Compute the inverse DTFT of: X(ω)=sinΩ cosΩ
x=1, x=-1, x=1, x=-1
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