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橢圓的切線作圖
Author:
紀延平
GeoGebra
New Resources
圓的切線方程
龙形曲线-分形龙
探究三角形的全等條件
讀磅
圓周公式的應用
Discover Resources
simson line
proof92吳冠穎
Copy of 閱讀鐘面及數字鐘（時和分）
水车应用题动画演示
约瑟夫问题
Discover Topics
Vectors
Optimization Problems
Parametric Curves
Fractions
Isosceles Triangles