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三角函数的概念核心知识点
Author:
邝素琴
Topic:
Trigonometric Functions
GeoGebra
New Resources
兩位數加法
異分母分數減法
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
畫出對稱圖形
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商高定理\水2
other
滑轮组2
定理介紹：切線與半徑 | Tangent and Radius
热带风暴storm
Discover Topics
Tree Diagrams
Standard Deviation
Tangent Function
Circle
Symmetry