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Signals & SystemsFourier Series

For a real odd periodic signal, the trigonometric Fourier series contains primarily?

  • ACosine terms and DC
  • BSine terms
  • COnly DC
  • DNo frequency components
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Correct Answer: B. Sine terms
Explanation: Odd symmetry eliminates cosine and DC terms, leaving sine terms.
Reference: Standard signals and systems: fourier series
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