2 4
3 / 4 3 \ 18*x*atan (2*x)*sin (x)
atan (2*x)*\sin (x)*3 + 12*x*sin (x)*cos(x)/ + -----------------------
2
1 + 4*x
$$\frac{18 x \sin^{4}{\left(x \right)} \operatorname{atan}^{2}{\left(2 x \right)}}{4 x^{2} + 1} + \left(12 x \sin^{3}{\left(x \right)} \cos{\left(x \right)} + 3 \sin^{4}{\left(x \right)}\right) \operatorname{atan}^{3}{\left(2 x \right)}$$
/ 2 \
2 | 2 / / 2 2 \ \ 6*x*sin (x)*(-1 + 2*x*atan(2*x)) 3*(4*x*cos(x) + sin(x))*atan(2*x)*sin(x)|
12*sin (x)*|- atan (2*x)*\x*\sin (x) - 3*cos (x)/ - 2*cos(x)*sin(x)/ - -------------------------------- + ----------------------------------------|*atan(2*x)
| 2 2 |
| / 2\ 1 + 4*x |
\ \1 + 4*x / /
$$12 \left(- \frac{6 x \left(2 x \operatorname{atan}{\left(2 x \right)} - 1\right) \sin^{2}{\left(x \right)}}{\left(4 x^{2} + 1\right)^{2}} - \left(x \left(\sin^{2}{\left(x \right)} - 3 \cos^{2}{\left(x \right)}\right) - 2 \sin{\left(x \right)} \cos{\left(x \right)}\right) \operatorname{atan}^{2}{\left(2 x \right)} + \frac{3 \left(4 x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin{\left(x \right)} \operatorname{atan}{\left(2 x \right)}}{4 x^{2} + 1}\right) \sin^{2}{\left(x \right)} \operatorname{atan}{\left(2 x \right)}$$
/ / 2 2 \ \
| 3 | 1 2 12*x*atan(2*x) 16*x *atan (2*x)| |
| 12*x*sin (x)*|-------- - atan (2*x) - -------------- + ----------------| |
| 2 / / 2 2 \ \ | 2 2 2 | 2 |
| 3 / / 2 2 \ / 2 2 \ \ 18*atan (2*x)*\x*\sin (x) - 3*cos (x)/ - 2*cos(x)*sin(x)/*sin(x) \1 + 4*x 1 + 4*x 1 + 4*x / 18*sin (x)*(-1 + 2*x*atan(2*x))*(4*x*cos(x) + sin(x))*atan(2*x)|
12*|- atan (2*x)*\3*\sin (x) - 3*cos (x)/*sin(x) + 2*x*\- 3*cos (x) + 5*sin (x)/*cos(x)/ - ---------------------------------------------------------------- + ------------------------------------------------------------------------ - ---------------------------------------------------------------|*sin(x)
| 2 2 2 |
| 1 + 4*x / 2\ / 2\ |
\ \1 + 4*x / \1 + 4*x / /
$$12 \left(\frac{12 x \left(\frac{16 x^{2} \operatorname{atan}^{2}{\left(2 x \right)}}{4 x^{2} + 1} - \frac{12 x \operatorname{atan}{\left(2 x \right)}}{4 x^{2} + 1} - \operatorname{atan}^{2}{\left(2 x \right)} + \frac{1}{4 x^{2} + 1}\right) \sin^{3}{\left(x \right)}}{\left(4 x^{2} + 1\right)^{2}} - \left(2 x \left(5 \sin^{2}{\left(x \right)} - 3 \cos^{2}{\left(x \right)}\right) \cos{\left(x \right)} + 3 \left(\sin^{2}{\left(x \right)} - 3 \cos^{2}{\left(x \right)}\right) \sin{\left(x \right)}\right) \operatorname{atan}^{3}{\left(2 x \right)} - \frac{18 \left(x \left(\sin^{2}{\left(x \right)} - 3 \cos^{2}{\left(x \right)}\right) - 2 \sin{\left(x \right)} \cos{\left(x \right)}\right) \sin{\left(x \right)} \operatorname{atan}^{2}{\left(2 x \right)}}{4 x^{2} + 1} - \frac{18 \left(4 x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \left(2 x \operatorname{atan}{\left(2 x \right)} - 1\right) \sin^{2}{\left(x \right)} \operatorname{atan}{\left(2 x \right)}}{\left(4 x^{2} + 1\right)^{2}}\right) \sin{\left(x \right)}$$