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The Compound Angle Formulae
Author:
Richard Cooper
,
Lee Robinson
The Compound Angle Formulae
GeoGebra
Copy the diagram and navigate through to prove the 'Compound Angle Formulae'
New Resources
探究由平行線和截線所成的角
What is an Isogonal Conjugate?
Exploring Simple Loci 探究簡單軌跡
Periodic Functions
Graphing Logarithmic Functions
Discover Resources
../wies_sp/wies2.ggb
Central Angle Theorem
Cosine and Sine Functions
Multiplication by 11 and Squares of 2 digit numbers
Waylonis_Angle Bisector
Discover Topics
Polynomial Functions
Subtraction
Arithmetic Operations
Conditional Probability
Dilation