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公切線(配合Dilate指令)
Author:
連琨銘
GeoGebra
New Resources
空间中两直线的位置关系
探究三角形的全等條件
垂直線的斜率
直線的斜率
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
畫蛇添福
內分點遞迴
角平分線-1
effect of changing data by Mr LO WY
拋物線1-焦點法
Discover Topics
Fractal Geometry
Linear Equations
Orthocenter
Boxplot
Logarithmic Functions