/ 6 3 \ | 2 3*x 6*x | 3*x*|----------- + ----------- - ------------------| | ________ 3/2 / 6\ / 3\| | / 6 / 6\ \-1 + x /*acos\x /| \\/ 1 - x \1 - x / / ---------------------------------------------------- 2/ 3\ acos \x /
/ 6 12 3 6 9 \ | 2 27*x 27*x 36*x 54*x 54*x | 3*|----------- + ----------- + ----------- - ------------------ + --------------------- + -------------------| | ________ 3/2 5/2 / 6\ / 3\ 3/2 2 | | / 6 / 6\ / 6\ \-1 + x /*acos\x / / 6\ 2/ 3\ / 6\ / 3\| \\/ 1 - x \1 - x / \1 - x / \1 - x / *acos \x / \-1 + x / *acos\x // -------------------------------------------------------------------------------------------------------------- 2/ 3\ acos \x /