How do you evaluate the limit of #lim (x+2)/(x^2-4)# as #x->-2#?
1 Answer
Dec 8, 2016
Factor the denominator and cancel like factors or use L'Hôpital's rule ; either way works.
Explanation:
Factor the denominator:
Cancel common factors:
Evaluate at the limit.
Use L'Hôpital's rule
The derivative of the numerator:
The derivative of the denominator: