Question

How do I find the limit of a rational function?

Answer 1

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.