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Proof72 徐晏翎
Author:
郭亮偉
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
判斷球體
直角坐標平面上的旋轉變換
【案例】2018年全国1卷理科12题
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分數(約分)
積分求面積
Cardioid: r=1-cosθ
兩圓外公切線
Copy of 正方體的反射對稱3
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Logarithm
Vectors
Ratios
Prism
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