Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
The subtraction formula for the cosine
Author:
s-tefan
Topic:
Cosine
,
Subtraction
,
Trigonometry
This figure proves and demonstrates the subtraction formula for the cosine:
GeoGebra
New Resources
Linear Cross Section Exercise
Construct a Square
van Aubel's Theorem
Slope of a Straight Line: Run and Rise
Ellipse, Hyperbola and Circle as Envelopes
Discover Resources
Angles in a cyclic quadrilateral
true/rational-number-in-expression2.ggb
Sine Transformations
Enlargements About a Centre
dodecahedron 12 zonohedra var II
Discover Topics
Probability
Tangent Line or Tangent
Geometric Transformations
Terms
Random Experiments