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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 unit vectors, direction of vectors, and step-by-step examples for solving vector problems efficiently.

Trigonometry Study Guide: Unit Vectors & Direction

Unit Vectors and Direction in Trigonometry

Geometric Vectors

Direction of a Vector

Unit Vectors and Direction in Trigonometry

Study Guide - Learn with Videos

Geometric Vectors

Direction of a Vector