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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Patrick

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Chris Sorensen

Data Analysis Fundamentals with Excel

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Chris Sorensen & Ammul Shergill

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George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

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Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript

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Michael Hartl

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Jared P. Lander

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Patrick Ford

Area of SAS & ASA Triangles

Example 1

Calculating Area of ASA Triangles

Calculating Area of SAS Triangles

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

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Callie Rethman

Nick Kaneko

Struggling with Trigonometry?