33 70*atan (x)*(17 - x*atan(x)) ----------------------------- 2 / 2\ \1 + x /
/ 2 2 \ 32 | 2 561 102*x*atan(x) 4*x *atan (x)| 70*atan (x)*|- atan (x) + ------ - ------------- + -------------| | 2 2 2 | \ 1 + x 1 + x 1 + x / ------------------------------------------------------------------ 2 / 2\ \1 + x /