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切线
Author:
素贞 许
Topic:
Tangent Line or Tangent
GeoGebra
New Resources
球體建築師
球体的体积推导（优化版）
拼砌四邊形
画直线等分三角形的面积
兩組對邊相等的四邊形
Discover Resources
判斷線型函數y=f(x)=ax+b的a值
物件平移的概念
Geogebra 教學
題六
fixed arc length and fixed shaded area
Discover Topics
Parallelogram
Rational Numbers
Quadratic Functions
Volume
Fractal Geometry