Which function has an infinite discontinuity at x=2x=2x=2?
f(x)=x−2x−2f(x) = \frac{x-2}{x-2}f(x)=x−2x−2
f(x)=1x−2f(x) = \frac{1}{x-2}f(x)=x−21
f(x)=x2−4f(x) = x^2 - 4f(x)=x2−4
f(x)=sin(x−2)f(x) = \sin(x-2)f(x)=sin(x−2)