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