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向量合成
Author:
laoxu
GeoGebra
New Resources
圓的切線方程
直線的斜率：水平變化 & 鉛垂變化
斜率的值
撒针估算面积实验
龙形曲线-分形龙
Discover Resources
以剪貼比較圖形大小 題2
Meaning of Negative Indices 負指數的意義
封閉著色2
Values of nCr & nPr 排列與組合的值
area 面積
Discover Topics
Equilateral Triangles
Logarithm
Pyramid
Polygons
Continuity