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单位圆画三角函数图像
Author:
梁航宇
GeoGebra
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双心四边形
科赫雪花
撒针估算面积实验
比較五件物件的重量
折扣
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畫三角形 題3a
線型函數
試算表纏繞畫
球面坐標
翰林數學_2下_CH3-1_多邊形的內角和
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Percentages
Integers
Arithmetic Mean
Hyperbola
Tangent Function