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20E-1
作者：
Donatus Bria
GeoGebra
最新資源
General Polar Equation of Conics with Rotation (1)
Tracing an Ellipse Using Two Circles
bewijs stelling van Pythagoras
Row and Column Views of Systems of Linear Equations
Circumference of a unit circle
探索資源
Test Geograbra
Notes 5-3-16
integers
Stairs (Optical Illusion)
探索主題
正切線或正切
3D 向量（三維）
多邊形
正切函數
函數