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Mod note: Moved from the math technical sections.

I need to show that

[tex]\int_{-\infty}^\infty \frac{\sin^2 (pa/\hbar)}{p^2} \, dp = \frac{\pi a}{\hbar}.[/tex]

I haven't got a clue how to integrate this function! Any help would be much appreciated thanks.

I need to show that

[tex]\int_{-\infty}^\infty \frac{\sin^2 (pa/\hbar)}{p^2} \, dp = \frac{\pi a}{\hbar}.[/tex]

I haven't got a clue how to integrate this function! Any help would be much appreciated thanks.

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