4 / 2*x*(-1 + 2*x*atan(2*x)) \
12*sin (3)*|- ------------------------ + atan(2*x)|*atan(2*x)
| 2 |
\ 1 + 4*x /
-------------------------------------------------------------
2
1 + 4*x
$$\frac{12 \left(- \frac{2 x \left(2 x \operatorname{atan}{\left(2 x \right)} - 1\right)}{4 x^{2} + 1} + \operatorname{atan}{\left(2 x \right)}\right) \sin^{4}{\left(3 \right)} \operatorname{atan}{\left(2 x \right)}}{4 x^{2} + 1}$$
/ / 2 2 \\
4 | | 1 2 12*x*atan(2*x) 16*x *atan (2*x)||
24*sin (3)*|-3*(-1 + 2*x*atan(2*x))*atan(2*x) + 2*x*|-------- - atan (2*x) - -------------- + ----------------||
| | 2 2 2 ||
\ \1 + 4*x 1 + 4*x 1 + 4*x //
----------------------------------------------------------------------------------------------------------------
2
/ 2\
\1 + 4*x /
$$\frac{24 \left(2 x \left(\frac{16 x^{2} \operatorname{atan}^{2}{\left(2 x \right)}}{4 x^{2} + 1} - \frac{12 x \operatorname{atan}{\left(2 x \right)}}{4 x^{2} + 1} - \operatorname{atan}^{2}{\left(2 x \right)} + \frac{1}{4 x^{2} + 1}\right) - 3 \left(2 x \operatorname{atan}{\left(2 x \right)} - 1\right) \operatorname{atan}{\left(2 x \right)}\right) \sin^{4}{\left(3 \right)}}{\left(4 x^{2} + 1\right)^{2}}$$