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三角函數的疊合
Author:
李春培
三角函數的疊合
GeoGebra
New Resources
第八周作业
異分母分數減法
兩組對邊相等和有直角的四邊形
找出對稱軸
兩位數除以一位數（二）
Discover Resources
fold and unflod the cone with geogebra5.0
海市蜃樓現象
圆柱截方
「相似三角形」任务3的副本
二次函數a的意義
Discover Topics
Similar Triangles
General Quadrilateral
Limits
Continuity
Rhombus