Question

Find the limit. use l'hospital's rule if appropriate. if there is a more elementary method, consider using it. lim x→1 x2 + 2x − 3 x − 1

Answer 1

$f(x)=x^2+2x-3x-1=x^2-x-1\\\\\lim\limits_{x\to1}(x^2-x-1)=1^2-1-1=-1$