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Copy of Addition formula for cosine
Author:
sevans134
,
Malin Christersson
Change the angles to see the cases in all four quadrants.
GeoGebra
New Resources
van Aubel's Theorem
A retro cityscape with mathematics
Stairs (Optical Illusion)
Cross Product in 2D and 3D
Parallel or Not? (V2)
Discover Resources
Costruzione di una parabola con parametri a, b, e c.
funció a trossos
Función Cuadrática - Desplazamientos
LR6-01-CYU2 (Solving a linear system graphically)
root of f(x)=λ on a cotnuous and strictly monotonic function
Discover Topics
Congruence
Right Triangles
Ratios
Quadrilaterals
Integers