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GeoGebra
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滾動圓
Author:
eyun306
GeoGebra
New Resources
三角函数 的副本
双心四边形
折扣
常见四边形是否是双心四边形
盈利與虧蝕
Discover Resources
[問題] x² + 2xy + y² + 5x + ay + b > 0
test04繪本用
Pokemon quiz (daliy)
葛爾崗點
圆柱截方
Discover Topics
Complex Numbers
Trigonometry
Pythagoras or Pythagorean Theorem
Arithmetic Operations
Special Points