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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

Nick Kaneko

Callie Rethman

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

Default TOC

This trigonometry study guide covers acute and non-acute angles, trigonometric functions, right triangle solutions, and real-world applications.

Acute Angles and Right Triangles: Trigonometric Functions and Applications

Study Guide - Learn with Videos

Trigonometric Functions on Right Triangles

Cofunctions of Complementary Angles

Special Right Triangles

Solving Right Triangles

Pythagorean Theorem & Basics of Triangles

Angles in Standard Position

Coterminal Angles

Reference Angles

Basics of Graphing