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三角函數with sine, cosine圖形
Author:
Eric Chang-Chien
GeoGebra
New Resources
双心四边形
龙形曲线-分形龙2
平行線的斜率
探究三角形的全等條件
比較五件物件的重量
Discover Resources
部分佔全部的百分率: 例1
Reflection 反射變換
Quiz on Naming of Congruent & Similar Triangles 全等及相似三角形的命名：測驗
八角柱(可側轉、上下轉)
人教A版3.1.3,空间向量的数量积分配律
Discover Topics
Polygons
Derivative
Functions
Differential Equation
Curve Sketching