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三角函數的由來
Author:
陳政任
GeoGebra
New Resources
算柱 (兩位數)
【案例】圆柱体内放置一个大球六个小球
兩位數加法
兩組對邊相等的四邊形
錐體建築師
Discover Resources
九點圓
ghseh 二次函數描點法左右平移-2
小六 圓周
正玄函数变化
学习 GeoGebra 3D 计算器
Discover Topics
Geometry
Prism
Sequences and Series
Symmetry
Functions