-x*sin(x) + cos(x) ------------------ + (-2*sin(x) - x*cos(x))*atan(x) 2 1 + x
2*(2*sin(x) + x*cos(x)) 2*x*(-x*sin(x) + cos(x)) (-3*cos(x) + x*sin(x))*atan(x) - ----------------------- - ------------------------ 2 2 1 + x / 2\ \1 + x /
/ 2 \ | 4*x | 2*|-1 + ------|*(-x*sin(x) + cos(x)) | 2| 3*(-3*cos(x) + x*sin(x)) \ 1 + x / 6*x*(2*sin(x) + x*cos(x)) (4*sin(x) + x*cos(x))*atan(x) + ------------------------ + ------------------------------------ + ------------------------- 2 2 2 1 + x / 2\ / 2\ \1 + x / \1 + x /