1.
Let f(x)=sin⁡−1xf(x)=\sin^{-1}x and g(x)=x2−x−2x2−2x−3g(x)=\frac{x^2-x-2}{x^2-2x-3}. If g(2)=lim⁡x→2g(x)g(2)=\lim_{x\to2}g(x), then the domain of the function f∘gf\circ g is: