sin(x)*acot(x)
sin(x) acot(x)*cos(x) - ------ 2 1 + x
2*cos(x) 2*x*sin(x) -acot(x)*sin(x) - -------- + ---------- 2 2 1 + x / 2\ \1 + x /
2 2*sin(x) 3*sin(x) 8*x *sin(x) 6*x*cos(x) -acot(x)*cos(x) + --------- + -------- - ----------- + ---------- 2 2 3 2 / 2\ 1 + x / 2\ / 2\ \1 + x / \1 + x / \1 + x /