/ / 4\ 4 8 / 4\\ 2 | 3*acos\x / 8*x 4*x *acos\x /| / 4\ -12*x *|----------- + ------- + -------------|*acos\x / | ________ 8 3/2 | | / 8 -1 + x / 8\ | \\/ 1 - x \1 - x / /
/ 8 2/ 4\ 4 / 4\ 8 2/ 4\ 16 2/ 4\ 12 / 4\\ | 16*x 3*acos \x / 36*x *acos\x / 26*x *acos \x / 24*x *acos \x / 48*x *acos\x /| 24*x*|- ----------- - ----------- - -------------- - --------------- - ---------------- + ---------------| | 3/2 ________ 8 3/2 5/2 2 | | / 8\ / 8 -1 + x / 8\ / 8\ / 8\ | \ \1 - x / \/ 1 - x \1 - x / \1 - x / \-1 + x / /