Drexel dragonThe Math ForumDonate to the Math Forum

The Math Forum Internet Mathematics Library

Sines and Cosines, Part 3 (Addition formulas)

_____________________________________
Library Home || Full Table of Contents || Suggest a Link || Library Help
_____________________________________

Visit this site: http://www.projectmathematics.com/sincos3.htm

Author:Project MATHEMATICS!, California Institute of Technology
Description: A videotape-and-workbook module that explores a basic topic in high school mathematics in ways that cannot be done at the chalkboard or in a textbook. Animation relates the sine and cosine of an angle with chord lengths of a circle, as explained in Ptolemy's Almagest. This leads to elegant derivations of addition formulas, with applications to simple harmonic motion.

Levels: High School (9-12)
Languages: English
Resource Types: Multimedia, Video, Lesson Plans and Activities, Textbooks
Math Topics: Conic Sections and Circles, History and Biography, Trigonometry
Math Ed Topics: Audiovisual/Multimedia, Curriculum/Materials Development

[Privacy Policy] [Terms of Use]

_____________________________________
Home || The Math Library || Quick Reference || Search || Help
_____________________________________

© 1994-2014 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Goodwin College of Professional Studies.The Math Forum is a research and educational enterprise of the Drexel University School of Education.