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餘弦函數值的變化
Author:
t0759
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
拼砌四邊形
畫出對稱圖形
三位數除以一位數（一）
Discover Resources
y=ax²的圖形
點和圓的位置關係
優良作品1
GeoGebra
拋物線1-焦點法
Discover Topics
Incircle or Inscribed Circle
Similarity Transformation or Similarity
Quadratic Equations
Ellipse
Mathematics