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the definition of ellipse
Author:
丁明智
GeoGebra
New Resources
三位數除以一位數（一）
直角坐標平面上的旋轉變換
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
第八周作业
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向量
七巧板
圖形的繪製(8)---圖形的搬移(畢氏定理)
Indices 5
探索到两定点的距离之积为定值的点的轨迹
Discover Topics
Vectors
Probability
Square
Ellipse
Addition