Find the domain of f(x)=\n(x2−1)f(x) = \n(x^2 - 1)f(x)=\n(x2−1) (assuming knowledge of logarithms).
x>1x > 1x>1 or x<−1x < -1x<−1
−1<x<1-1 < x < 1−1<x<1
x>1x > 1x>1
All real numbers