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GeoGebra
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GeoGebra
GeoGebra Classroom
GeoGebra
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三角函数线
Author:
陈瑾
GeoGebra
New Resources
盈利與虧蝕
第八周作业
活动三:应用性质
球体的截面
第三周作业效果演示
Discover Resources
test for fun
圓繞圓
梯形面積---麥田圈
Error (誤差)
椭圆的定义
Discover Topics
Geometric Distribution
Surface
Circle
Ellipse
Congruence