Find (g∘f)(x)(g \circ f)(x)(g∘f)(x) if f(x)=x2f(x) = x^2f(x)=x2 and g(x)=x−1g(x) = \sqrt{x-1}g(x)=x−1.
x2−1\sqrt{x^2-1}x2−1
x−1x-1x−1
x−1\sqrt{x}-1x−1
x2−1x^2-1x2−1