# Integration bessel function (simple)

#### lavster

Can someone confirm that $$\int J_0(ax)xdx=\frac{J_1(ax)x}{a}$$? I can only find the solution if J(x) but i want J(ax) so what i did above makes logical sense to me but i cant find it anywhere. thanks

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#### JJacquelin

That's alright.
Just let x=t/a and dx=dt/a in order to prove it.

#### lavster

excellent - thanks!