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優良作品3(昀潔)
Author:
Ching-Hui Chou
GeoGebra
New Resources
圓的切線方程
龙形曲线-分形龙
常见四边形是否是双心四边形
第八周作业3
第八周作业2
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分數加法和減法
動國旗
测试文件
向量加法
閱讀鐘面及數字鐘（時和分）的副本
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Trigonometry
Volume
Intersection
Similar Triangles
Tangent Line or Tangent