Скачать или смотреть How to find calculus limits of functions using conjugate | square root

In this calculus math example, we show the steps of how to algebraically find the limit to a function that has a square root in the denominator. To do so, we first evaluate the function at the constant that our variable is approaching by plugging in that value for our variable. When we find that the limit equals zero/zero 0/0, we know that we need to continue the process. This leads us to multiply both numerator and denominator by the conjugate of the denominator because it contains the square root. We take our time and explain every step of the process as we use the distributive property (FOIL) to expand the denominator before we simplify. Then we reduce our function to lowest terms. We are allowed to do this because it is a limit. After reduced, we again evaluate the limit by replacing the variable with the constant that it is approaching and simplify our answer completely.

This video contains examples that are from Business Calculus, 1st ed, by Calaway, Hoffman, Lippman. from the Open Course Library, remixed from Dale Hoffman's Contemporary Calculus text. It was extended by David Lippman to add several additional topics. The text is licensed under the Creative Commons Attribution license. http://creativecommons.org/licenses/b...





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