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4.3任意角的三角函數
Author:
user9429
GeoGebra
New Resources
漂亮的摇摆曲线
圓周公式的應用
讀磅
空间中两直线的位置关系
三位數除以一位數（二）
Discover Resources
Binomial Formula
正四角錐(可以旋轉， 顯示邊， 選擇透視)
Locus (Two points 2)
y=-3x+6(x>=3)
描点法画函数图像
Discover Topics
Cuboid
Random Variables
LCM and GCD
Orthocenter
Rhombus