3
sin (1) 2*E
- ------- + --------
2 2
x 1 + 4*x
$$\frac{2 e}{4 x^{2} + 1} - \frac{\sin^{3}{\left(1 \right)}}{x^{2}}$$
/ 3 \
|sin (1) 8*E*x |
2*|------- - -----------|
| 3 2|
| x / 2\ |
\ \1 + 4*x / /
$$2 \left(- \frac{8 e x}{\left(4 x^{2} + 1\right)^{2}} + \frac{\sin^{3}{\left(1 \right)}}{x^{3}}\right)$$
/ 3 2 \
| 8*E 3*sin (1) 128*E*x |
2*|- ----------- - --------- + -----------|
| 2 4 3|
| / 2\ x / 2\ |
\ \1 + 4*x / \1 + 4*x / /
$$2 \left(\frac{128 e x^{2}}{\left(4 x^{2} + 1\right)^{3}} - \frac{8 e}{\left(4 x^{2} + 1\right)^{2}} - \frac{3 \sin^{3}{\left(1 \right)}}{x^{4}}\right)$$