/ ___ 2\
2*(1 + 2*x)*atan\x + \/ 1 + x /
--------------------------------
2
/ ___ 2\
1 + \x + \/ 1 + x /
$$\frac{2 \left(2 x + 1\right) \operatorname{atan}{\left(x^{2} + \left(x + \sqrt{1}\right) \right)}}{\left(x^{2} + \left(x + \sqrt{1}\right)\right)^{2} + 1}$$
/ 2 2 / 2\ / 2\\
| / 2\ (1 + 2*x) 2*(1 + 2*x) *\1 + x + x /*atan\1 + x + x /|
2*|2*atan\1 + x + x / + ----------------- - ------------------------------------------|
| 2 2 |
| / 2\ / 2\ |
\ 1 + \1 + x + x / 1 + \1 + x + x / /
---------------------------------------------------------------------------------------
2
/ 2\
1 + \1 + x + x /
$$\frac{2 \left(- \frac{2 \left(2 x + 1\right)^{2} \left(x^{2} + x + 1\right) \operatorname{atan}{\left(x^{2} + x + 1 \right)}}{\left(x^{2} + x + 1\right)^{2} + 1} + \frac{\left(2 x + 1\right)^{2}}{\left(x^{2} + x + 1\right)^{2} + 1} + 2 \operatorname{atan}{\left(x^{2} + x + 1 \right)}\right)}{\left(x^{2} + x + 1\right)^{2} + 1}$$
/ 2 \
| 2 / 2\ 2 / 2\ / 2\|
| 2 / 2\ / 2\ / 2\ 3*(1 + 2*x) *\1 + x + x / 4*(1 + 2*x) *\1 + x + x / *atan\1 + x + x /|
4*(1 + 2*x)*|3 - (1 + 2*x) *atan\1 + x + x / - 6*\1 + x + x /*atan\1 + x + x / - ------------------------- + -------------------------------------------|
| 2 2 |
| / 2\ / 2\ |
\ 1 + \1 + x + x / 1 + \1 + x + x / /
---------------------------------------------------------------------------------------------------------------------------------------------------------
2
/ 2\
| / 2\ |
\1 + \1 + x + x / /
$$\frac{4 \left(2 x + 1\right) \left(- \left(2 x + 1\right)^{2} \operatorname{atan}{\left(x^{2} + x + 1 \right)} + \frac{4 \left(2 x + 1\right)^{2} \left(x^{2} + x + 1\right)^{2} \operatorname{atan}{\left(x^{2} + x + 1 \right)}}{\left(x^{2} + x + 1\right)^{2} + 1} - \frac{3 \left(2 x + 1\right)^{2} \left(x^{2} + x + 1\right)}{\left(x^{2} + x + 1\right)^{2} + 1} - 6 \left(x^{2} + x + 1\right) \operatorname{atan}{\left(x^{2} + x + 1 \right)} + 3\right)}{\left(\left(x^{2} + x + 1\right)^{2} + 1\right)^{2}}$$