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利用单位圆生成y=sin（x）在[0,2pi]的图象
Author:
孙琰
GeoGebra
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sanjiaohanshu
【案例】2013年安徽高考15题
直角坐標平面上的旋轉變換
錐體建築師
判斷球體
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waaachen
極坐標
雙搖桿
Ex5D#5
求一數是另一數的幾分之幾？
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Correlation
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