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Signals & SystemsFourier Transform

Parseval’s relation for the Fourier transform connects signal energy with?

  • AIntegral of |X(jω)|² in frequency
  • BOnly X(0)
  • COnly signal period
  • DMaximum signal amplitude only
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Correct Answer: A. Integral of |X(jω)|² in frequency
Explanation: Parseval's relation expresses time-domain energy equivalently in terms of the integral of spectral magnitude squared, with the appropriate 1/(2π) factor.
Reference: Standard signals and systems: fourier transform
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