What is the domain of f(x) = cos(x)? O the set of real

Last updated: 7/4/2022

What is the domain of f(x) = cos(x)? O the set of real numbers -2pi≤x≤2 O the set of real numbers -1<x< 1 O the set of real numbers 0≤x≤2pi O the set of all real numbers