Also called "right-handed" and "left-handed" limits, these are the ones where they put a little plus or minus sign to the right of the number. For example, 2+ would mean "limit as x approaches 2 from the right." These have a lot of graphing to them, so you'll definitely want to watch the previous video about graphical limits first.
One-Sided Limits Analytically (Algebraically)
In the first video we covered one-side limits based on graphs. In this video we cover left-hand and right-hand limits in equation form, including how to tell if they're approaching positive or negative infinity. Plugging in, as usual, is our best strategy!
If you do not have an account, you should get one, because it is awesome! You can save a playlist for each test or each chapter, and save your "greatest hits" into a "watch right before the final" list (not that we recommend cramming, but when in Rome...)