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Signals & SystemsFourier Transform

The continuous-time Fourier transform X(jω) of x(t) is defined as?

  • A∫x(t)e^(-jωt)dt over all time
  • B∫x(t)e^(jωt)dt from 0 to 1
  • Cx(t)e^(-jωt)
  • Ddx(t)/dt
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Correct Answer: A. ∫x(t)e^(-jωt)dt over all time
Explanation: The CTFT analysis equation is X(jω)=∫ from -∞ to ∞ x(t)e^(-jωt)dt.
Reference: Standard signals and systems: fourier transform
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