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正弦定理2
Author:
杨欣霞
GeoGebra
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第八周作业2
双心四边形
正方形雪花图案
第八周作业
科氏力 (Coriolis Force)
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正四面體
growth
國旗
根據百分率找數量（二）: 例2的副本
三角函数的概念核心知识点
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Constructions
Differential Calculus
Parallelogram
Pyramid
Circumcircle or Circumscribed Circle