About This Lesson
http://www.freemathvideos.com In this video series I will show you how to simplify a trigonometric expression by factoring and then simplifying. We will use factoring techniques such as grouping, difference of two squares, ac method, and perfect squares. Once we have an expression factored we will then use our trigonometric identities to simplify our expression to a single trig function or value. We will use trigonometric identites such as Pythangorean, even/odd, reciprocal, quotient, and co-function.
