acot(1 + x) 1 ----------- - ---------------------- 2 / 2\ (1 - x) \1 + (1 + x) /*(1 - x)
/ 1 1 + x acot(1 + x)\ -2*|----------------------- + --------------- + -----------| |/ 2\ 2 2 | |\1 + (1 + x) /*(-1 + x) / 2\ (-1 + x) | \ \1 + (1 + x) / / ------------------------------------------------------------ -1 + x
/ 2 \ | 1 3 3*acot(1 + x) 4*(1 + x) 3*(1 + x) | 2*|- --------------- + ------------------------ + ------------- + --------------- + ------------------------| | 2 / 2\ 2 3 3 2 | | / 2\ \1 + (1 + x) /*(-1 + x) (-1 + x) / 2\ / 2\ | \ \1 + (1 + x) / \1 + (1 + x) / \1 + (1 + x) / *(-1 + x)/ ------------------------------------------------------------------------------------------------------------- -1 + x