Which of the following describes the domain of the function f(x)=log3(x−1x+2)f(x) = \log_{3}(\frac{x-1}{x+2})f(x)=log3(x+2x−1)?
x>1x > 1x>1 or x<−2x < -2x<−2
x>1x > 1x>1
x>−2x > -2x>−2
−2<x<1-2 < x < 1−2<x<1