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一元二次方程式
Author:
李正仁
Topic:
Mathematics
GeoGebra
New Resources
球体的体积推导
兩位數除以一位數（一）
球體建築師
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
Discover Resources
等周長的扇形與矩形
用極座標做時鐘
勝者即正義，可愛即正義~
卡瓦列里原理
旋轉對稱 Rotational symmetry
Discover Topics
Step Functions
LCM and GCD
Tangent Line or Tangent
Variance
Square