The graph for the defined domain of sec-1x is drawn as shown. Find the domain and range of the function.
Understanding this is easy: we verify D = R - (-1, 1), R = [0, π] - /2 by full calculation: use standard identity, substitute, simplify step by step to reach D = R - (-1, 1), R = [0,
Ref: NCERT Mathematics Class XI — Sets, Relations and Functions
