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Anticlockwise Rotation (-1,-3)
Author:
amn
GeoGebra
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圓的基本性質
双心四边形
第八周作业1
撒针估算面积实验
科氏力 (Coriolis Force)
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梯形中線
四角柱體（長方體）的截面
sinα + sinβ > 0 ?
廣義三角函數
Copy of 圖四
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Reflection
Quadratic Functions
Solids or 3D Shapes
Probability
Numbers