acot(x - 1) ----------- / 1 acot(x - 1)\ x + 1 |- ---------------------- - -----------|*e | / 2\ 2 | \ \1 + (x - 1) /*(x + 1) (x + 1) /
/ 2 \ |/ 1 acot(-1 + x)\ | ||------------- + ------------| | acot(-1 + x) || 2 1 + x | | ------------ |\1 + (-1 + x) / 2 2*acot(-1 + x) 2*(-1 + x) | 1 + x |------------------------------- + ----------------------- + -------------- + ----------------|*e | 1 + x / 2\ 2 2| | (1 + x)*\1 + (-1 + x) / (1 + x) / 2\ | \ \1 + (-1 + x) / / ------------------------------------------------------------------------------------------------------------- 1 + x
/ 3 / 1 acot(-1 + x)\ / 1 acot(-1 + x) -1 + x \\ | / 1 acot(-1 + x)\ 6*|------------- + ------------|*|----------------------- + ------------ + ----------------|| | |------------- + ------------| | 2 1 + x | | / 2\ 2 2|| acot(-1 + x) | | 2 1 + x | 2 \1 + (-1 + x) / |(1 + x)*\1 + (-1 + x) / (1 + x) / 2\ || ------------ | 2 \1 + (-1 + x) / 6*acot(-1 + x) 6 8*(-1 + x) 6*(-1 + x) \ \1 + (-1 + x) / /| 1 + x -|- ---------------- + ------------------------------- + -------------- + ------------------------ + ---------------- + ------------------------ + --------------------------------------------------------------------------------------------|*e | 2 2 3 2 / 2\ 3 2 1 + x | | / 2\ (1 + x) (1 + x) (1 + x) *\1 + (-1 + x) / / 2\ / 2\ | \ \1 + (-1 + x) / \1 + (-1 + x) / (1 + x)*\1 + (-1 + x) / / --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1 + x