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3-3-09
Author:
Tzuen Hsu
GeoGebra
New Resources
圓周公式的應用
垂直線的斜率
異分母分數減法
祖冲之的期望：内棋与外棋
球体的体积推导
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前景圖、背景圖
分數除法4: 1 ÷ a/b (包含)
Decimal
小阿樂
展開圓面積 (講義版)的副本
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Diagrams
Differential Calculus
Ratios
Constructions
Parallelogram