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Focus and directrix connections
作者：
Dave Van Leeuwen
GeoGebra
最新資源
apec
The Gardener's Ellipse
Limaçons
Sum of Squares: Proof without Words
Trammel of Archimedes Art
探索資源
Centroid3
Construction of a kite
quadratic - part 1
stretch vertical y=b
תקוה ניסיון ראשון
first work from Tino (GER) with GeoGebra
探索主題
Plane Figures or Shapes
圓錐曲線
分佈
內切圓
減法