9.18 Determine the inverse DTFT of each of the following sequences: (a) X (ej)=2cos(2), (b) X(ej)...
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9.18 Determine the inverse DTFT of each of the following sequences: (a) X₁ (ej)=2cos(2), (b) X₁(ej) = 3cos(30)+4 sin(2), (c) Xc(ej@) = cos(4@+π/2), (d) X₁ (ej@) = sin(4@+1). 9.18 Determine the inverse DTFT of each of the following sequences: (a) X₁ (ej)=2cos(2), (b) X₁(ej) = 3cos(30)+4 sin(2), (c) Xc(ej@) = cos(4@+π/2), (d) X₁ (ej@) = sin(4@+1).
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