2/ x\ / x\
3*atan \x + e /*\1 + e /
------------------------
2
/ x\
1 + \x + e /
$$\frac{3 \left(e^{x} + 1\right) \operatorname{atan}^{2}{\left(x + e^{x} \right)}}{\left(x + e^{x}\right)^{2} + 1}$$
/ 2 2 \
| / x\ / x\ / x\ / x\|
| / x\ x 2*\1 + e / 2*\1 + e / *\x + e /*atan\x + e /| / x\
3*|atan\x + e /*e + ------------- - ---------------------------------|*atan\x + e /
| 2 2 |
| / x\ / x\ |
\ 1 + \x + e / 1 + \x + e / /
------------------------------------------------------------------------------------
2
/ x\
1 + \x + e /
$$\frac{3 \left(- \frac{2 \left(x + e^{x}\right) \left(e^{x} + 1\right)^{2} \operatorname{atan}{\left(x + e^{x} \right)}}{\left(x + e^{x}\right)^{2} + 1} + e^{x} \operatorname{atan}{\left(x + e^{x} \right)} + \frac{2 \left(e^{x} + 1\right)^{2}}{\left(x + e^{x}\right)^{2} + 1}\right) \operatorname{atan}{\left(x + e^{x} \right)}}{\left(x + e^{x}\right)^{2} + 1}$$
/ 3 3 3 3 2 \
| / x\ / x\ 2/ x\ / x\ / x\ / x\ / x\ / x\ x / x\ / x\ 2/ x\ 2/ x\ / x\ / x\ x|
| 2/ x\ x 2*\1 + e / 2*\1 + e / *atan \x + e / 12*\1 + e / *\x + e /*atan\x + e / 6*\1 + e /*atan\x + e /*e 8*\1 + e / *\x + e / *atan \x + e / 6*atan \x + e /*\1 + e /*\x + e /*e |
3*|atan \x + e /*e + ---------------- - ------------------------- - ---------------------------------- + -------------------------- + ----------------------------------- - ------------------------------------|
| 2 2 2 2 2 2 |
| / 2\ / x\ / 2\ / x\ / 2\ / x\ |
| | / x\ | 1 + \x + e / | / x\ | 1 + \x + e / | / x\ | 1 + \x + e / |
\ \1 + \x + e / / \1 + \x + e / / \1 + \x + e / / /
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2
/ x\
1 + \x + e /
$$\frac{3 \left(\frac{8 \left(x + e^{x}\right)^{2} \left(e^{x} + 1\right)^{3} \operatorname{atan}^{2}{\left(x + e^{x} \right)}}{\left(\left(x + e^{x}\right)^{2} + 1\right)^{2}} - \frac{6 \left(x + e^{x}\right) \left(e^{x} + 1\right) e^{x} \operatorname{atan}^{2}{\left(x + e^{x} \right)}}{\left(x + e^{x}\right)^{2} + 1} - \frac{12 \left(x + e^{x}\right) \left(e^{x} + 1\right)^{3} \operatorname{atan}{\left(x + e^{x} \right)}}{\left(\left(x + e^{x}\right)^{2} + 1\right)^{2}} + e^{x} \operatorname{atan}^{2}{\left(x + e^{x} \right)} - \frac{2 \left(e^{x} + 1\right)^{3} \operatorname{atan}^{2}{\left(x + e^{x} \right)}}{\left(x + e^{x}\right)^{2} + 1} + \frac{6 \left(e^{x} + 1\right) e^{x} \operatorname{atan}{\left(x + e^{x} \right)}}{\left(x + e^{x}\right)^{2} + 1} + \frac{2 \left(e^{x} + 1\right)^{3}}{\left(\left(x + e^{x}\right)^{2} + 1\right)^{2}}\right)}{\left(x + e^{x}\right)^{2} + 1}$$