## math_proof 2 years ago triple integral problem help

1. math_proof

$\int\limits_{0}^{3}\int\limits_{-\sqrt{9-y^2}}^{\sqrt{9-y^2}}\int\limits_{0}^{9-3\sqrt{x^2+y^2}}dzdxdy$

2. math_proof

i think that i have to change that to cylidrical coordinates