Mark the tick against the correct answer in the following:
Range of tan-1 x is
To Find: The range of tan-1 x
Here,the inverse function is given by y = ![]()
The graph of the function y = 
 can be obtained from the graph of
Y = tan x by interchanging x and y axes.i.e, if (a,b) is a point on Y = tan x then (b,a) is the point on the function y = ![]()
Below is the Graph of the range of ![]()

From the graph, it is clear that the range of 
 is restricted to any of the intervals like [
] , [
] , [
] and so on. Hence the range is given by
(
).