___ \/ x - 1 + acos(x - 1)
sqrt(x) - 1 + acos(x - 1)
1 1 ------- - ----------------- ___ ______________ 2*\/ x / 2 \/ 1 - (x - 1)
/ 1 -1 + x \ -|------ + ------------------| | 3/2 3/2| |4*x / 2\ | \ \1 - (-1 + x) / /
2 1 3 3*(-1 + x) - ------------------ + ------ - ------------------ 3/2 5/2 5/2 / 2\ 8*x / 2\ \1 - (-1 + x) / \1 - (-1 + x) /