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Locus 軌跡(1T)
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
柱體建築師
球体的体积推导（优化版）
Discover Resources
球差曲线
[問題] x² + 2xy + y² + 5x + ay + b > 0
三次函數01
Origami-Trisect An Angle
橢圓1--四圓心近似法
Discover Topics
Distributions
Logarithm
Natural Numbers
Matrices
Piecewise Functions