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包絡線：橢圓
Author:
羅驥韡 (Pegasus Roe)
Topic:
Ellipse
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
直角坐標平面上的旋轉變換
柱體建築師
拼砌四邊形
畫出對稱圖形
Discover Resources
分數加法
量角器2
Inclined plane (Angle between two planes)
圆锥曲线
老師講解8
Discover Topics
Numbers
Confidence Interval
Arithmetic
Continuity
Congruence