1. Education
Send to a Friend via Email

Sin, Cosine, & Tan Review and Tutorials

The Sin, Cosine and Tangent laws. Reviews, tutorials and interactive activities.

Brief Tutorial - Elementary Trignometric Functions
An elementary review of the properties of the trigonometric functions. What is the sine, cosine and tangent of 140º? Scientific Calculator required.

Trig Formula
A handy reference for the trigonometry formula.

Dr. Math Explains
How do you explain this concept? Look no further, the sin, cosine and tangent are made relevant with Dr. Math's explanations.

Beyond 90°
A tutorial to show you that supplementary angles have the same sine and opposite cosines.

You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

©2014 About.com. All rights reserved.