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 September 28th, 2014, 06:47 PM #1 Newbie   Joined: May 2014 From: California Posts: 4 Thanks: 0 Confused on how following was derived Hello everyone! I was working on some Fourier transform problems and was going over an example. I am confused on the following was derived: From: Any information would be great! Thanks!
 September 28th, 2014, 07:32 PM #2 Math Team   Joined: Dec 2013 From: Colombia Posts: 7,671 Thanks: 2651 Math Focus: Mainly analysis and algebra I presume $\mathbb j = \sqrt{-1}$. Recall that $$e^{\mathbb j \theta} = \cos \theta + \mathbb j \sin \theta$$and that $\cos x$ is even and $\sin x$ is odd.
 September 29th, 2014, 11:48 AM #3 Newbie   Joined: May 2014 From: California Posts: 4 Thanks: 0 Thank you! That makes sense!

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