How do I find the limit of a rational function?

1 Answer
Jul 23, 2015

Answer:

First start by putting the limiting values for the independent variable.
If the denominator becomes zero, then consider factoring the numerator and denominator and cancelling the common terms.

Explanation:

If both numerator and denominator come zero or infinity, try considering the L'Hospital rule.

#Lim x to a# #(f(x)/g(x))# = #Lim x to a# #((f'(x))/(g'(x)))#

You may repeat it as many times you like to get the desired limit.