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Can someone please give me the gist of how to show that the integral form of the Airy function for real inputs:

[tex]

Ai(x) = \frac{1}{\pi} \int_0^\infty \cos\left(\tfrac13t^3 + xt\right)\, dt,

[/tex]

satisfies the Airy Differential Equation: y'' - xy = 0

I tried differentiating twice wrt to the x variable (assuming I could just bring it inside the integration) and then subbing back into the ODE but that failed.

Regards,

Thrillhouse

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# Showing Integral form satisfies the Airy function

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