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橢圓關係
Author:
Martin Chang
GeoGebra
New Resources
平行線的判定
双心四边形
龙形曲线-分形龙
折扣
活动三：应用性质
Discover Resources
對稱和變換
MeArm機構模擬V.2
螢橋國中 陳柏丞
-(√3/2)³ ≤ sinα sinβ sinγ ≤ (√3/2)³
椭圆的定义
Discover Topics
Secant Line or Secant
Subtraction
Volume
Orthocenter
Unit Circle