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平行四邊形與長方形的關係
Author:
fantast411
GeoGebra
New Resources
盈利與虧蝕
比較五件物件的重量
科赫雪花
第八周作业
活动三：应用性质
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公切線(配合Dilate指令)
conjugate
線外一點
教材製作-兩圓位置關係
属于与不属于
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Power Functions
Complex Numbers
Statistics
Numbers
Trigonometric Functions