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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
【案例】圆柱体内放置一个大球六个小球
【案例】2018年全国1卷理科12题
三位數除以一位數(二)
兩位數除以一位數(二)
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徐州市初二年级期末试题
體積的量度 5
Conic section-ellipse&hyperbola
集合的小结
尺规作图
Discover Topics
Hyperbola
Subtraction
Division
Isosceles Triangles
Median Line