MATHEMATICS · Multi-part · AP · AP Precalculus · Polynomial and Rational Functions · Polynomial and Rational Functions
Problem
Consider the function f(x)=x2−5x+6x2−4.
(i) Find the domain of f.
(ii) List all points where f is discontinuous.
(iii) For each such point, determine whether the discontinuity is removable or non-removable, showing all algebraic working and relevant limits.