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賺賠：例1的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
賺賠
GeoGebra
New Resources
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
Nested spiral octagon
判斷球體
畫出對稱圖形
Discover Resources
Clock24hour
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
了解圓方程(1)的副本
Find your perfect rectangle
正方体镂空模型（通用）
Discover Topics
Subtraction
Arithmetic Operations
Piecewise Functions
Polynomial Functions
Vectors 3D (Three-Dimensional)