pi*cos(x)
x*cos(x) - --------- + sin(x)
2
$$x \cos{\left(x \right)} + \sin{\left(x \right)} - \frac{\pi \cos{\left(x \right)}}{2}$$
pi*sin(x)
2*cos(x) + --------- - x*sin(x)
2
$$- x \sin{\left(x \right)} + \frac{\pi \sin{\left(x \right)}}{2} + 2 \cos{\left(x \right)}$$
pi*cos(x)
-3*sin(x) + --------- - x*cos(x)
2
$$- x \cos{\left(x \right)} - 3 \sin{\left(x \right)} + \frac{\pi \cos{\left(x \right)}}{2}$$