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Author:
Lin Ching Chieh
GeoGebra
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【案例】2013年安徽高考15题
垂直線的斜率
画直线等分三角形的面积
讀磅
第八周作业
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proof SAS
應該是錯誤的圖
Example 1
三角形3,4,5
彩色莫比乌斯环
Discover Topics
Normal Distribution
Fractal Geometry
Tree Diagrams
Conditional Probability
Interest Calculation