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Signals & SystemsDTFT

If x[n] is delayed by n0 samples, its DTFT is multiplied by?

  • Ae^(-jωn0)
  • Be^(jωn0)
  • Cn0
  • Djω
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Correct Answer: A. e^(-jωn0)
Explanation: The DTFT time-shift property is x[n-n0] ↔ e^(-jωn0)X(e^(jω)).
Reference: Standard signals and systems: dtft
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