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特殊角三角函数值

Author:GeoGebra Institute of WuXi

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找出對稱軸
画直线等分三角形的面积
【案例】圆柱体内放置一个大球六个小球
直角坐標平面上的旋轉變換
判斷球體

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Vertex Form of Quadratic Functions(2) 二次函數的圖像：頂點式(2)
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Copy of 軸對稱
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S3 Ex4.3 Q05(3D圖)

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