Q47Multiple choice
Let f : R → R be given by f (x) = tan x. Then f –1 (1) is
- (A)
- (B){n π + : n ∈ Z} 4 4
- (C)does not exist
- (D)none of these Fill in the blanks in each of the Exercises 48 to 52.
Let f : R → R be given by f (x) = tan x. Then f –1 (1) is