If f(x)=ln(x2−9)f(x) = \ln(x^2 - 9)f(x)=ln(x2−9) and g(x)=ln(x+3)+ln(x−3)g(x) = \ln(x+3) + \ln(x-3)g(x)=ln(x+3)+ln(x−3), which statement is true?
f(x)=g(x)f(x) = g(x)f(x)=g(x) for all xxx in their domain.
The domain of f(x)f(x)f(x) is (3,∞)(3, \infty)(3,∞).
The domain of g(x)g(x)g(x) is (3,∞)(3, \infty)(3,∞) and f(x)=g(x)f(x) = g(x)f(x)=g(x).
The domain of g(x)g(x)g(x) is (−∞,−3)∪(3,∞)(-\infty, -3) \cup (3, \infty)(−∞,−3)∪(3,∞) and f(x)=g(x)f(x) = g(x)f(x)=g(x).