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Author:
tao sun
GeoGebra
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常见四边形是否是双心四边形
折扣
科赫雪花
第八周作业
第八周作业2
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認識線型函數
正六面體摺疊
線性變換矩陣(二階)
俄羅斯方塊
黃金三角形
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Limits
Geometric Mean
Tangent Function
Tangent Line or Tangent
Intersection