/ 2 \ 2*\1 + cot (x)/ x*cot(x) / 2 \ --------------- - ----------- + 2*\1 + cot (x)/*acos(x)*cot(x) ________ 3/2 / 2 / 2\ \/ 1 - x \1 - x /
/ 2 \ | 3*x | |-1 + -------|*cot(x) | 2| / 2 \ / 2 \ \ -1 + x / 6*\1 + cot (x)/*cot(x) / 2 \ / 2 \ 3*x*\1 + cot (x)/ --------------------- - ---------------------- - 2*\1 + cot (x)/*\1 + 3*cot (x)/*acos(x) + ----------------- 3/2 ________ 3/2 / 2\ / 2 / 2\ \1 - x / \/ 1 - x \1 - x /