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九點圓
Author:
李詠甯
九點圓
GeoGebra
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GeoGebra笔记功能体验课件
找出對稱軸
近似值：有效數字
兩位數除以一位數（二）
畫出對稱圖形
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waaachen
高中二年級向量
Task 5: Regular Hexagon
拋物線?
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
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Right Triangles
Median Value
Quadratic Equations
Symmetry
Special Points