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對角三角函數
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1041018
GeoGebra
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斐波那契螺旋弧线(表格法)
平行線的判定
常见四边形是否是双心四边形
正方形雪花图案
第八周作业3
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y=ax²的圖形
Travel Graph 行程圖
題七
conjugate
中考专题-等腰三角形与旋转-求角度专项-D-1
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Sine
Ellipse
Cosine
Means
Centroid or Barycenter