Given that f(x)=6x^2−2x and g(x)=2x, what is the domain of (fg)(x)?

1 answer

The domain of a function is the set of all possible values for the input variable. In this case, since both f(x) and g(x) are defined for all real numbers, the domain of (fg)(x) would be the same as the domain of f(x) and g(x), which is the set of all real numbers, or (-∞, ∞).