Question Number 87901 by mathmax by abdo last updated on 07/Apr/20
![calculate ∫∫_([0,1]^2 ) ((arctan(x+y))/(x+y))dxdy](https://www.tinkutara.com/question/Q87901.png)
$${calculate}\:\int\int_{\left[\mathrm{0},\mathrm{1}\right]^{\mathrm{2}} } \:\:\:\frac{{arctan}\left({x}+{y}\right)}{{x}+{y}}{dxdy} \\ $$
calculate-0-1-2-arctan-x-y-x-y-dxdy-