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HKCEE 2009 Q17
Author:
tkyggb
GeoGebra
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兩位數加法
近似值：有效數字
第八周作业
兩組對邊相等和有直角的四邊形
畫出對稱圖形
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math1
过圆上一点作切线，三步
thm 11,12
高斯定理：對角線中點共線
畢氏定理學生(楊知樾)
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Numbers
Parametric Curves
Similar Triangles
Power Functions
Sequences and Series