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極坐標
Author:
Roger Lee
GeoGebra
New Resources
Bottema's Theorem
Angles and Intersecting Lines: Quick Investigation
Napoleon's Theorem
Witch of Agnesi - A Classical Construction
Linear Cross Section Exercise
Discover Resources
Double angle proof
Day 12
manchester.applet
Parallelogram properties
feedbacksqrtggb3Darla
Discover Topics
Real Numbers
Parametric Curves
Multiplication
Kite
Random Variables