1 2 - + ----- / ___\ x 1 + x 1 -pi + 2*atan\\/ x / --------- - --------- + ------------------- 2*(1 + x) x*(1 + x) 3/2 4*x
/3 8 4 \ 2*|-- + -------- + ---------| /1 2 \ / / ___\\ | 2 2 x*(1 + x)| 6*|- + -----| 3*\-pi + 2*atan\\/ x // \x (1 + x) / 6 \x 1 + x/ - ----------------------- - ----------------------------- + ---------- + ------------- 5/2 1 + x 2 x*(1 + x) x x *(1 + x) -------------------------------------------------------------------------------------- 8