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椭圆的两条垂直切线的交点轨迹 蒙日圆
Author:
冯伟冀
,
istone
Topic:
Ellipse
,
Geometric Transformations
GeoGebra
New Resources
判斷球體
四邊形的特性
拼砌四邊形
【案例】2013年安徽高考15题
球体的体积推导(优化版)
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北區模考多選第八題 (2014.03.06)
平行四邊形的高
平行四邊形的面積
二项式定理
三角形分形
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Continuity
Stochastic Process or Random Process
Geometry
LCM and GCD
Cylinder