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以 Unit Circle 了解 Sine 的正/負的副本
Author:
zhujianpeng
,
gklwong
以 Unit Circle 了解 Sine 的正/負
GeoGebra
New Resources
四邊形的特性
近似值：有效數字
拼砌四邊形
長方體平面投影 (Codex版)
Earth with coastline
Discover Resources
folding aeroplane
拋物線軌跡(1)
畢氏定理
正方体展开图的副本
湖南省中职数学教师省培（GeoGebra培训案例）
Discover Topics
Pyramid
Isosceles Triangles
Normal Distribution
Intersection
Sine