Evaluate the limit if it exists calculator

We can estimate the value of a limit, if it exists, by evaluating the function at values near x=0. We cannot find a function value for x=0 directly because the result would have a denominator equal to 0, and thus would be undefined.

Evaluate the limit of a function by factoring. Use the limit laws to evaluate the limit of a polynomial or rational function. Evaluate the limit of a function by factoring or by using conjugates. Evaluate the limit of a function by using the squeeze theorem.

You can recognize the limits by what happens when you substitute the value x approaches into the expression. If it gives 0/0, there is algebra that you can do to find the exact value of the limit.