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分數加法和減法
Author:
Samsam
這程式來自 Morton Betts，由Samsam翻譯。
GeoGebra
New Resources
判斷球體
兩組對邊相等的四邊形
找出對稱軸
異分母分數減法
【案例】2013年安徽高考15题
Discover Resources
任意角的三角比
一題多解,托勒密,代數,三角,柯西,鍾元杰
Statistics (M1)
ｃｉｒｃｌｅ ｓｅｇｍｅｎｔ
折纸—直三棱锥
Discover Topics
General Quadrilateral
Planes
Cuboid
Special Points
Incircle or Inscribed Circle