How to prove $\displaystyle \int_0^{\infty} \frac{\sin x}{x} \, dx = \frac{\pi}{2}$?
How do I proceed?
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3That has been asked like a thousand times on MSE. – Jack D'Aurizio Feb 15 '17 at 22:57
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If a thousand people asked how to prove it, surely it is true. – ajotatxe Feb 15 '17 at 22:59
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wow thanks a lot – Neo Feb 15 '17 at 23:02