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cotangent
作者：
nallelibalvar
GeoGebra
最新資源
Toroidal Spiral
Trefoil Knot
Graph of y = a(x − h)² + k
Graph of y = ax² + bx + c
Level Curves
探索資源
Regular Polygon Area
Sample Translation
blue cube
Cut-The-Knot Action (4)!
Boxplot with two data sets
探索主題
等腰三角形
梯形
正切線或正切
統計
微分