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mooc第四讲椭圆反射
Author:
单晨
GeoGebra
New Resources
四邊形的特性
畫出對稱圖形
球體建築師
【案例】圆柱体内放置一个大球六个小球
【案例】2013年安徽高考15题
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Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
正四面體的旋轉對稱
文星中学一模数学压轴题
椭圆的两条垂直切线的交点轨迹 蒙日圆
剪紙問題
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Hyperbola
Definite Integral
Dilation
Sine
Pythagoras or Pythagorean Theorem