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Good1
作者：
Peng Zheng
GeoGebra
最新資源
Slope and Road Signs
Trefoil Knot
Angle Addition: Warm Up Exercises
Fourier Lissajous (Mechanical)
Viviani's Curve
探索資源
Plane Interactive
pg303-15
Cobb-Douglass
c_stCir
Geometry House Hunting
Exploration with sine and cosine of sums of angles
Equilateral Triangle
探索主題
正切函數
旋轉
3D 向量（三維）
極限值
直線