Prove that $y = J_0(2 \sqrt x)$ is a solution of $x\ddot y + \dot y + y = 0$

58 Views Asked by At

I'm been trying to prove this result about Bessel functions but I didn't work it out. My question is how to prove by direct substitution that $$y = J_0(2 \sqrt x)$$ is a solution to $$x\cdot \ddot y + \dot y + y = 0$$.