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Author:
郭致伸
GeoGebra
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比較五件物件的重量
折扣
平行線的判定
科赫雪花
常见四边形是否是双心四边形
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內切圓滾動
指數函數圖形(底互為倒數)
Equations of Circles 圓方程
四心的變化II
題二
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Integers
Solids or 3D Shapes
Special Points
Linear Regression
Trigonometric Functions