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正弦定理的证明
Author:
梁航宇
GeoGebra
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兩位數加法
三位數除以一位數(二)
画直线等分三角形的面积
柱體建築師
算柱 (兩位數)
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test03
擴分
棒形圖2(我最喜愛的科目)
三次函数的极点
BkD_act15_04c
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Median Value
General Quadrilateral
Cosine
Circle
Vectors