2 8/ 2 \
3*x *sin \x + 1/ 7/ 2 \ / 3\ / 2 \
----------------- + 16*x*sin \x + 1/*atan\x /*cos\x + 1/
6
1 + x
$$16 x \sin^{7}{\left(x^{2} + 1 \right)} \cos{\left(x^{2} + 1 \right)} \operatorname{atan}{\left(x^{3} \right)} + \frac{3 x^{2} \sin^{8}{\left(x^{2} + 1 \right)}}{x^{6} + 1}$$
/ / 6 \ \
| 2/ 2\ | 3*x | |
| 3*x*sin \1 + x /*|-1 + ------| |
| | 6| 3 / 2\ / 2\|
6/ 2\ | / / 2\ / 2\ 2 2/ 2\ 2 2/ 2\\ / 3\ \ 1 + x / 48*x *cos\1 + x /*sin\1 + x /|
2*sin \1 + x /*|8*\cos\1 + x /*sin\1 + x / - 2*x *sin \1 + x / + 14*x *cos \1 + x //*atan\x / - ------------------------------ + -----------------------------|
| 6 6 |
\ 1 + x 1 + x /
$$2 \cdot \left(\frac{48 x^{3} \sin{\left(x^{2} + 1 \right)} \cos{\left(x^{2} + 1 \right)}}{x^{6} + 1} - \frac{3 x \left(\frac{3 x^{6}}{x^{6} + 1} - 1\right) \sin^{2}{\left(x^{2} + 1 \right)}}{x^{6} + 1} + 8 \left(- 2 x^{2} \sin^{2}{\left(x^{2} + 1 \right)} + 14 x^{2} \cos^{2}{\left(x^{2} + 1 \right)} + \sin{\left(x^{2} + 1 \right)} \cos{\left(x^{2} + 1 \right)}\right) \operatorname{atan}{\left(x^{3} \right)}\right) \sin^{6}{\left(x^{2} + 1 \right)}$$
/ / 6 12 \ \
| 3/ 2\ | 27*x 36*x | / 6 \ |
| 3*sin \1 + x /*|1 - ------ + ---------| 2 2/ 2\ | 3*x | / 2\|
| | 6 2| 144*x *sin \1 + x /*|-1 + ------|*cos\1 + x /|
| | 1 + x / 6\ | 2 / / 2\ / 2\ 2 2/ 2\ 2 2/ 2\\ / 2\ | 6| |
5/ 2\ | / 3/ 2\ 2 3/ 2\ 2/ 2\ / 2\ 2 2/ 2\ / 2\\ / 3\ \ \1 + x / / 72*x *\cos\1 + x /*sin\1 + x / - 2*x *sin \1 + x / + 14*x *cos \1 + x //*sin\1 + x / \ 1 + x / |
2*sin \1 + x /*|- 16*x*\3*sin \1 + x / - 84*x *cos \1 + x / - 21*cos \1 + x /*sin\1 + x / + 44*x *sin \1 + x /*cos\1 + x //*atan\x / + --------------------------------------- + ------------------------------------------------------------------------------------ - ---------------------------------------------|
| 6 6 6 |
\ 1 + x 1 + x 1 + x /
$$2 \left(- \frac{144 x^{2} \cdot \left(\frac{3 x^{6}}{x^{6} + 1} - 1\right) \sin^{2}{\left(x^{2} + 1 \right)} \cos{\left(x^{2} + 1 \right)}}{x^{6} + 1} + \frac{72 x^{2} \left(- 2 x^{2} \sin^{2}{\left(x^{2} + 1 \right)} + 14 x^{2} \cos^{2}{\left(x^{2} + 1 \right)} + \sin{\left(x^{2} + 1 \right)} \cos{\left(x^{2} + 1 \right)}\right) \sin{\left(x^{2} + 1 \right)}}{x^{6} + 1} - 16 x \left(44 x^{2} \sin^{2}{\left(x^{2} + 1 \right)} \cos{\left(x^{2} + 1 \right)} - 84 x^{2} \cos^{3}{\left(x^{2} + 1 \right)} + 3 \sin^{3}{\left(x^{2} + 1 \right)} - 21 \sin{\left(x^{2} + 1 \right)} \cos^{2}{\left(x^{2} + 1 \right)}\right) \operatorname{atan}{\left(x^{3} \right)} + \frac{3 \cdot \left(\frac{36 x^{12}}{\left(x^{6} + 1\right)^{2}} - \frac{27 x^{6}}{x^{6} + 1} + 1\right) \sin^{3}{\left(x^{2} + 1 \right)}}{x^{6} + 1}\right) \sin^{5}{\left(x^{2} + 1 \right)}$$