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正20面体
Author:
2143550746
GeoGebra
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活动三：应用性质
第三周作业效果演示
第八周作业3
比較五件物件的重量
龙形曲线-分形龙
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Drag the red dots, see the area ratio of EHFG to ABCD
Test
極式：切線方向
數學素養試題
定積分 (The Definite Integral)
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Special Points
Histogram
Reflection
Vectors 3D (Three-Dimensional)
Surface