Trigonometric Identities, Sum and Difference Formulas and Applications

Trigonometric Identities and Formulas

In this module, we use the fundamental identities to derive important formulas for the six trigonometric functions which are quite useful in calculus.

Review: Fundamental trigonometric identities and the Pythagorean Theorem

Learning Objectives:

  • Even – Odd Identitites
  • Cofunction Identities
  • Sum and Difference Formulas
  • Double Angle Formulas
  • Half-Angle Formulas
  • Power Reduction formulas
  • Product to Sum and Sum to Product Formulas