Finding limits algebraically

3 videos
2 skills
We often attempt to find the limit at a point where the function itself is not defined. In this tutorial, we will use algebra to "simplify" functions into ones where it is defined. Given that the original function and the simplified one may be identical except for the limit point in question, this is a useful way of finding limits.

Finding limits algebraically

VIDEO 5:44 minutes

Limit properties

VIDEO 5:08 minutes

Two-sided limits using algebra

PRACTICE PROBLEMS

Example: Two-sided limits using advanced algebra

VIDEO 3:56 minutes
Watch Sal find a tricky limit by factoring a cubic expression.