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以 Unit Circle 了解 Sine 的正/負的副本
Author:
xiaoqing xia
,
gklwong
以 Unit Circle 了解 Sine 的正/負
GeoGebra
New Resources
異分母分數減法
平行線的斜率
漂亮的摇摆曲线
画直线等分三角形的面积
GeoGebra笔记功能体验课件
Discover Resources
用數值滑桿控製物件顯示條件
GGB基礎教學Reuleaux
Copy of 整數或分數÷分數_工作紙（一）_題3a
二位數除以一位數商一位
两角和的正切公式几何证明
Discover Topics
Symmetry
Geometric Transformations
Quadratic Equations
Natural Numbers
Vectors 2D (Two-Dimensional)