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一元二次方程式-應用問題(兩圓相切-3)
Author:
均一
GeoGebra
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【案例】2013年安徽高考15题
柱體建築師
球體建築師
兩組對邊相等的四邊形
第八周作业
Discover Resources
十字立方體
正n邊形與圓上點的中點軌跡(解析)
circle: line from centre
酷狗音乐
黄金三角形到螺旋线（表格法）
Discover Topics
Tree Diagrams
Symmetry
Prism
Circumcircle or Circumscribed Circle
Vectors 3D (Three-Dimensional)