Question Number 87903 by mathmax by abdo last updated on 07/Apr/20
$${find}\:\int_{\mathrm{0}} ^{\infty} \int_{\mathrm{0}} ^{\infty} \:\frac{{arctan}\left({xy}\right)}{\left({x}+{y}\right)^{\mathrm{2}} }{dxdy} \\ $$
find-0-0-arctan-xy-x-y-2-dxdy-