About This Lesson
http://www.freemathvideos.com In this video series we explore the definitions of trigonometric identities. It is very important when simplifying, verifying and solving trigonometric problems that we know the trig identities. We will explore the identities such as reciprocal, quotient, pythagorean, co-function, and even/oddhttp://www.freemathvideos.com In this video series I show you how to use even and odd functions to evaluate trigonometric functions. Cosine and secant are our even functions where sine, tangent, cosecant and cotangent are our odd functions.
