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折扣 例5
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
柱體建築師
異分母分數減法
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
畫出對稱圖形
Discover Resources
Section Curves (2)
双曲线和直线的位置关系
軌跡 直線 (與兩平行線等距)
数一数这是几边形
弦的垂直線何時平分弦活動?
Discover Topics
Differential Equation
Pythagoras or Pythagorean Theorem
Stochastic Process or Random Process
Root
Fractions