Question

What is the domain and range of `f(x) = tan(x) - 3`?

Answer 1

Within period (-pi/2, pi/2),

Domain of x: (-pi/2, pi/2). When `x = +- pi/2` --> f(x) goes to infinity.

Range of f(x) = (-infinity, +infinity). When x = 0 ->tan x = 0 -> x = -3 graph{tan x - 3 [-10, 10, -5, 5]}