Khan Academy
Khan Academy: Pre Calculus: Limit Examples (Part 3)
Video addresses limits of rational functions that can be simplified by factoring. Also provides examples of how to find the limit of a function as x approaches infinity. Includes link to practice problems. This video is also found in the...
Khan Academy
Khan Academy: Differential Calculus: Limit Examples (Part 4)
Video focuses on complex functions that require substantial simplification before determining the limit. Examples include a radical function and a trigonometric function. [15:02]