DTFT Problems

DTFT Problems

Compute the DTFT of the discrete-time signal
shown in the Figure below. (Please see attachment) 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] Compute the inverse DTFT of
X(ω)=cosΩ Compute the inverse DTFT of: X(ω)=sinΩ
cosΩ Compute the rectangular form of the
four-point DFT of the following signal, which is zero for n=4.x[0]=1, x[1]=-1, x[2]=1, x[3]=-1

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