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同角三角函数的基本关系(正六边形记忆法)
Author:
桃篮翁
GeoGebra
New Resources
畫出對稱圖形
錐體建築師
兩位數加法
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
圓內弦中點軌跡
My second work
正多面體
比例中的定值問題(一)
拋物線2--焦點法
Discover Topics
General Quadrilateral
Ellipse
Geometric Distribution
Tree Diagrams
Ratios