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Spiral1
Author:
chen mingchuan
GeoGebra
New Resources
盈利與虧蝕
活动三:应用性质
正方形雪花图案
平行線的判定
常见四边形是否是双心四边形
Discover Resources
Rectangle _03
IMO2014C
分數
反射路徑(角落進洞)
分數加法
Discover Topics
Subtraction
Power Functions
Complex Numbers
Integers
Mathematics