Question

Let f : R → R be given by f(x) = tan x. Then f^-1(1) is ____________.

पर्याय

• `pi/4`

• `{"n" pi + pi/4 ; "n" in "Z"}`

• Does not exist

• None of these

Answer 1

Let f : R → R be given by f(x) = tan x. Then f^-1(1) is `underline({"n" pi + pi/4 ; "n" in "Z"})`.