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切割正二十面體(直)
Author:
薛鈞聰
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
兩組對邊相等的四邊形
錐體建築師
畫出對稱圖形
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題 9
優良作品1(昀潔)
cos(π/n)cos(2π/n)cos(3π/n) ... cos(nπ/n) = ?
畫圓周範例檔
P.5_FRACTION_NPMPS
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Parametric Curves
Step Functions
Linear Functions
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Mathematics