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一线三等角
Author:
lansesorry
GeoGebra
New Resources
第八周作业3
龙形曲线-分形龙
活动三：应用性质
三角函数 的副本
撒针估算面积实验
Discover Resources
橢圓的定義（by Jutor）
Similar triangles in a triangle
箭頭引導法計算文字乘以文數字
椭圆内光线的反射
線性規劃
Discover Topics
Cone
Piecewise Functions
Mathematics
LCM and GCD
Complex Numbers