Copy of Sin Cos and Tan animated from the unit circle

Author:Rita Visser, Tim Elton

See how the functions sin, cos, and tan are defined from the unit circle, extending the definitions beyond the the 0 to 90 degrees that fit nicely inside a right-angled triangle.

New Resources

Nobody Likes to Be a Circle Either
Vectors and Components
Sunny Variations
Taylor Series for 1/(1 - x)
seo tool

Discover Resources

Properties of Quadrilaterals
Unit 11 and 12 Sketch
Test Worksheet
Right Triangle Theorem
SAS_Demo

Discover Topics

Means
Symmetry
Random Variables
Definite Integral
Circle