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三角形外心的軌跡
Author:
lunhsin
GeoGebra
New Resources
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
四邊形的特性
異分母分數減法
三位數除以一位數（一）
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百分數的應用
Problem1:(md+me+mf)/(ad+be+cf)=a
qid_39321
Angles formed by two straight lines and transversal
向量的座標變換矩陣與線性組合
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Similarity Transformation or Similarity
Planes
Diagrams
Integers
Histogram