5 atan (x)
d / 5 \ --\atan (x)/ dx
4 5*atan (x) ---------- 2 1 + x
3 10*atan (x)*(2 - x*atan(x)) --------------------------- 2 / 2\ \1 + x /
/ 2 2 \ 2 | 2 6 12*x*atan(x) 4*x *atan (x)| 10*atan (x)*|- atan (x) + ------ - ------------ + -------------| | 2 2 2 | \ 1 + x 1 + x 1 + x / ---------------------------------------------------------------- 2 / 2\ \1 + x /