___ ___ / x \ \/ x *atan(x) \/ x *|------ + atan(x)| + ------------- | 2 | 2 \1 + x /
/ 2 \ x ___ | x | ------ + atan(x) 2*\/ x *|-1 + ------| 2 | 2| 1 + x atan(x) \ 1 + x / ---------------- - ------- - --------------------- ___ ___ 2 \/ x 4*\/ x 1 + x
/ 2 \ / 2 \ / x \ | x | 3/2 | x | 3*|------ + atan(x)| 3*|-1 + ------| 8*x *|-1 + ------| | 2 | | 2| | 2| \1 + x / 3*atan(x) \ 1 + x / \ 1 + x / - -------------------- + --------- - --------------- + -------------------- 3/2 3/2 ___ / 2\ 2 4*x 8*x \/ x *\1 + x / / 2\ \1 + x /