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輾轉相除法
Author:
陳宥羽
GeoGebra
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双心四边形
直線的斜率
撒针估算面积实验
第八周作业3
垂直線的斜率
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
六年級_截面_柱體_多邊形
課堂工作紙(一)
楼梯
加减法练习
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Upper and Lower Sum or Riemann Sum
Trigonometric Functions
Addition
Plane Figures or Shapes
Geometric Distribution