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Helix around Helix 2
作者：
Joanne821
GeoGebra
最新資源
Focus and Directrix
Perimeter of Rectangle
z`]]
Area of a Trapezoid
Superellipse
探索資源
material
angles for test
C1 Graffiau CBAC Ion 2005
rotating a point and a triangle around the point animation
cococococooc
探索主題
圓錐曲線
導數
黎曼和（Riemann Sum）
角度
坐標