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PMC 2014-15 Q4
Author:
Arthur Lee
圖中圓形的數目隨n的大小而改變。當n＝5，圖中應該有多小個圓？
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小数 的副本
長方體平面投影 (Codex版)
找出對稱軸
畫出對稱圖形
直角坐標平面上的旋轉變換
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三角函數
函數圖形
愛心
正六角柱
练习及小结
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Constructions
Tangent Function
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Vectors 3D (Three-Dimensional)
Symmetry