x - 10
------ + atan(x)
2
1 + x
$$\frac{x - 10}{x^{2} + 1} + \operatorname{atan}{\left(x \right)}$$
/ x*(-10 + x)\
2*|1 - -----------|
| 2 |
\ 1 + x /
-------------------
2
1 + x
$$\frac{2 \left(- \frac{x \left(x - 10\right)}{x^{2} + 1} + 1\right)}{x^{2} + 1}$$
/ / 2 \ \
| | 4*x | |
2*|-3*x + |-1 + ------|*(-10 + x)|
| | 2| |
\ \ 1 + x / /
----------------------------------
2
/ 2\
\1 + x /
$$\frac{2 \left(- 3 x + \left(x - 10\right) \left(\frac{4 x^{2}}{x^{2} + 1} - 1\right)\right)}{\left(x^{2} + 1\right)^{2}}$$