Revision as of 14:11, 8 October 2008 by Ccadwall (Talk)

Problem 2 Fourier Transfer

$ x(t) = \cos{\pi t} $

$ F(x(t)) = \int_{-\infty}^\infty x(t) e^{-j\omega t}dt $

$ \chi(\omega) = \int_{-\infty}^\infty \cos{(\pi t)} e^{-j\omega t} dt $

$ \chi(\omega) = \int_{-\infty}^\infty \cos{(\pi t)} e^{-j\omega t} dt $

$ = \int_{-\infty}^\infty{ \frac{1}{2} e^{-j\pi t}e^{-j\omega t} dt} + \int_{-\infty}^\infty{ \frac{1}{2} e^{-j\pi t}e^{-j\omega t} dt} $

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