GATE EC 2015 Set 3 — Question 54

NAT+2 / -0MediumDFT & FFTDiscrete-Time SignalsSignals & Systems

Signals & Systems → Discrete-Time Signals → DFT & FFT

Last updated 5 September 2026

Question

\tilde{x}[n] = 1 + \cos\left(\frac{\pi n}{8}\right)

\tilde{x}[n] = 1 + \cos\left(\frac{\pi n}{8}\right)

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\tilde{x}[n] = 1 + \cos\left(\frac{\pi n}{8}\right)

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