Question Number 201355 by MrGHK last updated on 05/Dec/23
Answered by witcher3 last updated on 05/Dec/23
$$=\int_{\mathrm{0}} ^{\mathrm{1}} \int_{\mathrm{0}} ^{\mathrm{1}} \frac{\mathrm{tan}^{−\mathrm{1}} \left(\mathrm{xy}\right)\mathrm{y}}{\left(\mathrm{xy}+\mathrm{1}\right)\left(\mathrm{y}+\mathrm{1}\right)}\mathrm{dxdy}\:\mathrm{can}\:\mathrm{be}\:\mathrm{solved}\: \\ $$