What is the value of #\lim _ { x \rightarrow - 3} \frac { x ^ { 2} - 9} { x ^ { 2} - 2x - 15} #?
2 Answers
Apr 13, 2017
Explanation:
By factoring out the numerator and the denominator,
I hope that this was clear.
Apr 13, 2017
Explanation:
Using L'Hopital's rule, we can work out the limit of an expression.
L'Hopital's rule:
#=lim_(x->-3)(2x)/(2x-2)#
#=lim_(x->-3)x/(x-1)#