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用交轨法求动点的轨迹方程图.许兴华数学
Author:
许兴华数学
Topic:
Conic Sections
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
球體建築師
兩位數除以一位數（二）
Discover Resources
認識分數
deductive geometry
Tool4P
放射狀旋轉圖形(1)
正方形推垛
Discover Topics
Polygons
Limits
Cosine
Addition
Probability