##### Subchapters

- Fundamental Identities
- Proving Trigonometric Identities
- Sum and Difference Identities
- Multiple-Angle Identities
- The Law of Sines
- The Law of Cosines
- Review Exercises
- Project

##### Other chapters in Pearson Precalculus Graphical Numerical Algebraic, 2006

- Prerequisites
- Functions and Graphs
- Polynomial, Power, and Rational Functions
- Exponential, Logistic, and Logarithmic Functions
- Trigonometric Functions
- Applications of Trigonometry
- Systems and Matrices
- Analytic Geometry in Two and Three Dimensions
- Discrete Mathematics
- An Introduction to Calculus: Limits, Derivatives, and Integrals
- Appendix A
- Appendix C