This is LaTeX code:

[latex]
=\frac{1}{4}\left\{\ln{\frac{\tan{x}+\sqrt{2\tan{x}}+1}{\tan{x}-\sqrt{2\tan{x}}+1}}+2\left[\arctan{\left(\sqrt{2\tan{x}}-1\right)}+\arctan{\left(\sqrt{2\tan{x}}+1\right)}\right]\right\}+C
[/latex]