/ ________ 2 \ | / 2 x | -x + |\/ 1 - x - -----------|*acos(x) | ________| | / 2 | \ \/ 1 - x /
/ ________ 2 \ | / 2 x | / 2 \ 2*|- \/ 1 - x + -----------| | x | | ________| x*|-3 + -------|*acos(x) 2 | / 2 | | 2| x \ \/ 1 - x / \ -1 + x / ------- + ------------------------------- + ------------------------ 2 ________ ________ -1 + x / 2 / 2 \/ 1 - x \/ 1 - x
2 / ________ 2 \ / 2 \ / 2 \ | / 2 x | / 2 \ | 3*x | | x | 3*x*|- \/ 1 - x + -----------| | x | x*|-1 + -------| 3*|-1 + -------| *acos(x) | ________| 3*x*|-3 + -------| | 2| | 2| | / 2 | | 2| \ -1 + x / \ -1 + x / \ \/ 1 - x / \ -1 + x / - ---------------- - ------------------------- + --------------------------------- + ------------------ 2 ________ 3/2 2 -1 + x / 2 / 2\ -1 + x \/ 1 - x \1 - x /