1 7 6
- ------ + x *cos(x) + 7*x *sin(x)
2
1 + x
$$x^{7} \cos{\left(x \right)} + 7 x^{6} \sin{\left(x \right)} - \frac{1}{x^{2} + 1}$$
/ 2 6 5 4 \
x*|--------- - x *sin(x) + 14*x *cos(x) + 42*x *sin(x)|
| 2 |
|/ 2\ |
\\1 + x / /
$$x \left(- x^{6} \sin{\left(x \right)} + 14 x^{5} \cos{\left(x \right)} + 42 x^{4} \sin{\left(x \right)} + \frac{2}{\left(x^{2} + 1\right)^{2}}\right)$$
2
2 7 6 8*x 5 4
--------- - x *cos(x) - 21*x *sin(x) - --------- + 126*x *cos(x) + 210*x *sin(x)
2 3
/ 2\ / 2\
\1 + x / \1 + x /
$$- x^{7} \cos{\left(x \right)} - 21 x^{6} \sin{\left(x \right)} + 126 x^{5} \cos{\left(x \right)} + 210 x^{4} \sin{\left(x \right)} - \frac{8 x^{2}}{\left(x^{2} + 1\right)^{3}} + \frac{2}{\left(x^{2} + 1\right)^{2}}$$