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Author:
lunhsin
GeoGebra
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常见四边形是否是双心四边形
第八周作业2
第八周作业
三角函数 的副本
折扣
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極限不存在(雙路徑法)
CircleRoundCircle
ghk99a29 扇形旋轉
椭圆的定义
質數
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Polynomial Functions
Diagrams
Intersection
Continuity
Calculus