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旋轉橢圓
Author:
賴詩唐
GeoGebra
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兩位數加法
異分母分數減法
四邊形的特性
三位數除以一位數（二）
兩組對邊相等的四邊形
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f(x) and f(-x)
試證明：A=B+C
空間旋轉矩陣
圖形遊戲
翰林數學_2下_CH3-1_三角形的內角與外角
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Volume
Geometric Transformations
Arithmetic Operations
Tangent Function
Fractions