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橢圓拋物面2
Author:
紀老師
GeoGebra
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拼砌四邊形
畫出對稱圖形
兩組對邊相等和有直角的四邊形
兩位數加法
判斷球體
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龍騰4_1-1講段8
[問題] x² + 2xy + y² + 5x + ay + b > 0
Example 6.1
三角形的外心
立體三角測量(例七&八)
Discover Topics
Circumcircle or Circumscribed Circle
Arithmetic Mean
Interest Calculation
Cuboid
Subtraction