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Angles, identities, and trig functions giving you trouble? Trigonometry is explained step-by-step so solving problems feels more approachable.

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Patrick Ford

Callie Rethman

Nick Kaneko

0. Review of College Algebra

1. Measuring Angles

2. Trigonometric Functions on Right Triangles

3. Unit Circle

4. Graphing Trigonometric Functions

5. Inverse Trigonometric Functions and Basic Trigonometric Equations

6. Trigonometric Identities and More Equations

7. Non-Right Triangles

8. Vectors

9. Polar Equations

10. Parametric Equations

11. Graphing Complex Numbers

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This trigonometry study guide covers identities, equations, exact values, and vector problems to help you master key concepts and ace your course.

Comprehensive Trigonometry Study Guide: Identities, Equations, and Vectors

Study Guide - Learn with Videos

Introduction to Trigonometric Identities

Sum and Difference Identities

Solving Trigonometric Equations Using Identities

Linear Trigonometric Equations

Trigonometric Functions on Right Triangles

Solving Right Triangles

Vectors in Component Form

Direction of a Vector