Copy of Sin Cos and Tan animated from the unit circle

Author:Keshav Pillai, 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

The black friday GeoGebra :)
Untitled
Positive and Negative Space
koch tool
Rolling Triangle

Discover Resources

Direct Variation Practice
В стиле Эшера
Feynman2 problem 5
A9b Perpendicular lines
'Tangram' Puzzle 'Cat'

Discover Topics

Power Functions
Logarithmic Functions
Subtraction
General Quadrilateral
Real Numbers