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橢圓軌跡
Author:
Mason Chang
橢圓軌跡
GeoGebra
New Resources
拼砌四邊形
兩位數除以一位數（一）
球體建築師
錐體建築師
異分母分數減法
Discover Resources
滾動圓周來發現圓周長
Expectation Value 期望值
九點共圓
Rectangle
橢圓代數性質,光學性質,生活應用
Discover Topics
Vectors 3D (Three-Dimensional)
Linear Equations
Geometry
Statistics
Ellipse