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saxen
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Homework Statement
Using that the Fourier transform of e[itex]^{|x|}[/itex] is [itex]\frac{2}{\xi^2+1}[/itex]. Compute the Fourier transform of [itex]\frac{x}{(x^2+1)^2}[/itex]
Homework Equations
The Attempt at a Solution
My first thought was to try and rewrite the problem in a form I recognized, tried a couple of things but what I though was best was to write:
[itex]\frac{d}{dx}[/itex] [itex]\frac{-1}{x^2+1}[/itex]
And transform that to e[itex]^{i*\xi}[/itex]*f([itex]\xi[/itex]). This was wrong. Very wrong actually.
Anyone have any hints for me?
thanks!
edit: Missed some things but should be right this time.
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