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Från parallellogram till rektangel
Author:
Hector Vasquez
GeoGebra
New Resources
Ellipse, Hyperbola and Circle as Envelopes
Bottema's Theorem
Introduction
Ellipse as Envelope - Correspondence Method
Drag that Point!
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Tangent and cotangent
Grid Multiplication
Doodle
T5ss
graphing the inverse function
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LCM and GCD
Arithmetic Operations
Bar Chart or Bar Graph
Kite
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