/ 2 / 2 \ \ x*tan(x*x + 1)
\2*x *\1 + tan (x*x + 1)/ + tan(x*x + 1)/*log(x + 1) + --------------
x + 1
$$\frac{x \tan{\left(x x + 1 \right)}}{x + 1} + \left(2 x^{2} \left(\tan^{2}{\left(x x + 1 \right)} + 1\right) + \tan{\left(x x + 1 \right)}\right) \log{\left(x + 1 \right)}$$
/ 2 / 2/ 2\\ / 2\\ / 2\
2*\2*x *\1 + tan \1 + x // + tan\1 + x // x*tan\1 + x / / 2/ 2\ 2 / 2/ 2\\ / 2\\
----------------------------------------- - ------------- + 2*x*\3 + 3*tan \1 + x / + 4*x *\1 + tan \1 + x //*tan\1 + x //*log(1 + x)
1 + x 2
(1 + x)
$$2 x \left(4 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \tan{\left(x^{2} + 1 \right)} + 3 \tan^{2}{\left(x^{2} + 1 \right)} + 3\right) \log{\left(x + 1 \right)} - \frac{x \tan{\left(x^{2} + 1 \right)}}{\left(x + 1\right)^{2}} + \frac{2 \left(2 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) + \tan{\left(x^{2} + 1 \right)}\right)}{x + 1}$$
/ 2 / 2/ 2\\ / 2\\ / 2\ / 2/ 2\ 2 / 2/ 2\\ / 2\\
3*\2*x *\1 + tan \1 + x // + tan\1 + x // / 2/ 2\ 2 / 2/ 2\\ / / 2\ 2 / 2/ 2\\ 2 2/ 2\\ 2 / 2/ 2\\ / 2\\ 2*x*tan\1 + x / 6*x*\3 + 3*tan \1 + x / + 4*x *\1 + tan \1 + x //*tan\1 + x //
- ----------------------------------------- + 2*\3 + 3*tan \1 + x / + 4*x *\1 + tan \1 + x //*\3*tan\1 + x / + 2*x *\1 + tan \1 + x // + 4*x *tan \1 + x // + 12*x *\1 + tan \1 + x //*tan\1 + x //*log(1 + x) + --------------- + --------------------------------------------------------------
2 3 1 + x
(1 + x) (1 + x)
$$\frac{6 x \left(4 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \tan{\left(x^{2} + 1 \right)} + 3 \tan^{2}{\left(x^{2} + 1 \right)} + 3\right)}{x + 1} + \frac{2 x \tan{\left(x^{2} + 1 \right)}}{\left(x + 1\right)^{3}} + 2 \left(4 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \left(2 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) + 4 x^{2} \tan^{2}{\left(x^{2} + 1 \right)} + 3 \tan{\left(x^{2} + 1 \right)}\right) + 12 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \tan{\left(x^{2} + 1 \right)} + 3 \tan^{2}{\left(x^{2} + 1 \right)} + 3\right) \log{\left(x + 1 \right)} - \frac{3 \left(2 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) + \tan{\left(x^{2} + 1 \right)}\right)}{\left(x + 1\right)^{2}}$$
/ 2 / 2/ 2\\ / 2\\ / 2\ / 2/ 2\ 2 / 2/ 2\\ / 2\\
3*\2*x *\1 + tan \1 + x // + tan\1 + x // / 2/ 2\ 2 / 2/ 2\\ / / 2\ 2 / 2/ 2\\ 2 2/ 2\\ 2 / 2/ 2\\ / 2\\ 2*x*tan\1 + x / 6*x*\3 + 3*tan \1 + x / + 4*x *\1 + tan \1 + x //*tan\1 + x //
- ----------------------------------------- + 2*\3 + 3*tan \1 + x / + 4*x *\1 + tan \1 + x //*\3*tan\1 + x / + 2*x *\1 + tan \1 + x // + 4*x *tan \1 + x // + 12*x *\1 + tan \1 + x //*tan\1 + x //*log(1 + x) + --------------- + --------------------------------------------------------------
2 3 1 + x
(1 + x) (1 + x)
$$\frac{6 x \left(4 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \tan{\left(x^{2} + 1 \right)} + 3 \tan^{2}{\left(x^{2} + 1 \right)} + 3\right)}{x + 1} + \frac{2 x \tan{\left(x^{2} + 1 \right)}}{\left(x + 1\right)^{3}} + 2 \left(4 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \left(2 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) + 4 x^{2} \tan^{2}{\left(x^{2} + 1 \right)} + 3 \tan{\left(x^{2} + 1 \right)}\right) + 12 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) \tan{\left(x^{2} + 1 \right)} + 3 \tan^{2}{\left(x^{2} + 1 \right)} + 3\right) \log{\left(x + 1 \right)} - \frac{3 \left(2 x^{2} \left(\tan^{2}{\left(x^{2} + 1 \right)} + 1\right) + \tan{\left(x^{2} + 1 \right)}\right)}{\left(x + 1\right)^{2}}$$