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(3cos2y ; y)
Author:
Sin Min
GeoGebra
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盈利與虧蝕
第八周作业2
第八周作业1
平行線的判定
撒针估算面积实验
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圍棋名人賽
圓周 (圖形I)
gjzbh 矩陣與遞迴關係(3階)
閱讀月曆
摺長方形
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Probability
Rhombus
Parallelogram
Numbers
Constructions