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I'm studying on Fourier Transform. And the only thing I don't understand about it still now is the problem about Fourier Integral with non-periodic function. Why we can write it in the form above ? Please help me. I appreaciate any help.

Best regard.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Need a help about Fourier Integral.

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