4.8.3 Graph of the inverse cotangent function

. . Graph of the inverse cotangent function The inverse cotangent function, y cot is a function whose domain is  and the range is ( , ) p . That is, cot : −∞∞ ) → ( π . Fig. . and Fig. . show the cotangent function in the principal domain and the inverse cotangent function in the corresponding domain, respectively. Fig. . Fig. . π − − − − O − − − − 3π − 2π − π 2π 3π O { } cot ( , ) \ in π = cot O − − − − − − O − y = cot – x y = cot x in ( ,ϖ) Inverse - - Inverse Trigonometric Functions