acos(2*x) / log(4) 2*x \ -4*4 *|--------- + -------------|*log(4) | 2 3/2| |-1 + 4*x / 2\ | \ \1 - 4*x / /
/ 2 2 \ acos(2*x) | 1 log (4) 12*x 6*x*log(4) | 8*4 *|- ------------- - ------------- - ------------- + ------------|*log(4) | 3/2 3/2 5/2 2| | / 2\ / 2\ / 2\ / 2\ | \ \1 - 4*x / \1 - 4*x / \1 - 4*x / \-1 + 4*x / /