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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
【案例】2013年安徽高考15题
拼砌四邊形
畫出對稱圖形
四邉形 (四年級) 教師版
算柱 (兩位數)
Discover Resources
ie 7
分2
工具：DimensionArrows
勒洛三角形任意點P軌跡
工作紙(1) 思考題
Discover Topics
Vectors 3D (Three-Dimensional)
Geometric Mean
Statistics
Geometry
Trapezoid