-3*acos(4*x)
12 -------------- ___________ / 2 \/ 1 - 16*x
192*x -------------- 3/2 / 2\ \1 - 16*x /
/ 2 \ | 48*x | -192*|-1 + ----------| | 2| \ -1 + 16*x / ---------------------- 3/2 / 2\ \1 - 16*x /