Answer:
Option b
Step-by-step explanation:
Since we are dealing with a question that deals with domain and range, it is best if we solve the problem graphically with the help of a calculator or any plotting tool.
Please, see attached image
We graph the equations and find the behavior of the graph
Domain
All reals except multiples of 2π
Range:
f(x) ∈ (-∞,-2] ∪ [2,∞)
