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20200406找点构成直角和等角
Author:
陈敦莹
GeoGebra
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第八周作业2
百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
双心四边形
第三周作业效果演示
Discover Resources
反演(Inversion)
ghseh 二次函數描點法頂點法-2
congruent (SS) 2
垂線作圖
直角座標轉為極座標
Discover Topics
Trapezoid
Sine
Division
Arithmetic
Complex Numbers