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Addition of 3 Directed Numbers
Author:
Chan Man Fai
Addition of 3 Directed Numbers
GeoGebra
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【案例】2018年全国1卷理科12题
拼砌四邊形
GeoGebra笔记功能体验课件
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
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內心
整數的加法
偏導數
正弦定理的验证
正方体展开的动态
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Similar Triangles
Standard Deviation
Parabola
Incircle or Inscribed Circle
Exponent