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20161223 第5題
Author:
3A516057 練鴻裕
GeoGebra
New Resources
圓的基本性質
异形操场
双心四边形
龙形曲线-分形龙2
活动三：应用性质
Discover Resources
Trajectory of system: y'=y^2-y
路徑四動畫
congruent (SSS) 2
雙曲線2--焦點法
昆三中课堂试用1
Discover Topics
Cosine
Fractions
Congruence
Square
Circumcircle or Circumscribed Circle