1 acos(3*x - 1) - -- 2 x
acos(3*x - 1) - 1/x^2
3 2 - ------------------- + -- ________________ 3 / 2 x \/ 1 - (3*x - 1)
/2 3*(-1 + 3*x) \ -3*|-- + --------------------| | 4 3/2| |x / 2\ | \ \1 - (-1 + 3*x) / /
/ 2 \ | 9 8 27*(-1 + 3*x) | 3*|- -------------------- + -- - --------------------| | 3/2 5 5/2| | / 2\ x / 2\ | \ \1 - (-1 + 3*x) / \1 - (-1 + 3*x) / /