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    hamed_had's Avatar
    hamed_had Posts: 1, Reputation: 1
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    #1

    Jan 1, 2016, 12:43 AM
    what is cos Fourier transform of e^-x
    i need to integrate e^-x*coswx*dx 0<x<infinite
    which is cosin fourier transform
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jan 3, 2016, 09:49 AM
    Hint: have you tried integrating by parts? You will need to do it twice. Post back with your attempt at this and we'll check your work for you.
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