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