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GeoGebra
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20190220 Q3
Author:
Franky_0219
GeoGebra
New Resources
椭圆内切圆链
盈利與虧蝕
第三周作业效果演示
龙形曲线-分形龙
平行線的判定
Discover Resources
基測試題滾動
refraction law
五位數
橢圓拋物面2
頂、棱與面
Discover Topics
Cone
Algebra
Linear Programming or Linear Optimization
Pythagoras or Pythagorean Theorem
Orthocenter