Reversal property of the Fourier Transform

If $ F(\omega)=\mathcal{F}[f(t) $, then $$\mathcal{F}[f(-t)]=F(-\omega)=F^{*}(\omega)$$ where the asterisk denotes the complex conjugate. This property states that reversing $ f(t) $ about the time axis reverses $ F(\omega) $ about the frequency axis. This may be regarded as a special case of time scaling for which $ a=-1 $ in Eq. (A).
$$\mathcal{F}[f(at)]= { 1 \over | a |} F\left({ \omega \over a}\right)$$

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