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