Equivalent Representations of Trigonometric Functions

This study guide covers fundamental trigonometric identities, including the Pythagorean Identity and its manipulations, along with identities related to tangent/secant and cotangent/cosecant. It also explores sum and difference identities for sine and cosine, as well as double-angle identities. Finally, it provides practice questions and exam tips focusing on simplifying expressions, solving equations, and proving identities.