QnA fy - Recent questions tagged calculus https://qnafy.com/tag/calculus Powered by Question2Answer $I=\int_0^{\infty}\!\frac{\ln\left(\tan\left(\tan^{-1}\left(e^{\frac{1}{\pi}\tan^{-1}u}\right)\right)\right)}{u^2+2\pi u+2\pi^2}\,du$$=?$ https://qnafy.com/14619/%24i-int_0-infty-frac-ln-left-tan-left-tan-1-left-e-frac-1-pi-tan-1-u-right-right-right-u-2-2-pi-u-2-pi-2-du%24%24-%24 Math https://qnafy.com/14619/%24i-int_0-infty-frac-ln-left-tan-left-tan-1-left-e-frac-1-pi-tan-1-u-right-right-right-u-2-2-pi-u-2-pi-2-du%24%24-%24 Sat, 12 Jul 2025 05:00:47 +0000