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3.1.1-2-椭圆的定义(到两点的距离和为定值)
Author:
贾红朝
GeoGebra
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畫出對稱圖形
【案例】圆柱体内放置一个大球六个小球
球體建築師
拼砌四邊形
【案例】2013年安徽高考15题
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範例
聯立方程式
線性組合
圓周公式應用題2
becca貝卡卡
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Trigonometry
Complex Numbers
Logarithmic Functions
Parabola
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