5 4*x - -- + 2*sin(x) + 4*acot(x) - ------ 2 2 x 1 + x
/ 2 \ | 4 5 4*x | 2*|- ------ + -- + --------- + cos(x)| | 2 3 2 | | 1 + x x / 2\ | \ \1 + x / /
/ 3 \ | 15 16*x 16*x | 2*|-sin(x) - -- - --------- + ---------| | 4 3 2| | x / 2\ / 2\ | \ \1 + x / \1 + x / /