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宋聿數學 算幾不等式
Author:
宋秉祐
GeoGebra
New Resources
alg2_05_05_01_applet_exp_flvs
Droste effect
alg2_05_05_01_applet_exp_2_flvs
Poorly Drawn Parallelograms 3
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Discover Resources
Parabola and Circle
pentagram
Investigating Triangle Congruence Postulates
da good ol boys
Ellipses and hyperbola
Discover Topics
Right Triangles
Arithmetic Mean
Geometric Transformations
Unit Circle
Translation