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2次函數_變數
Author:
林宗穎
GeoGebra
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兩組對邊相等和有直角的四邊形
Nested spiral octagon
近似值：有效數字
Earth with coastline
拼砌四邊形
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已知橢圓 x^2/a^2+y^2/b^2=1 (a>b>0)
Probability of forming a triangle
台球反射
Copy of 平行四邊形面積
函数作图工具的副本
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Translation
Tree Diagrams
Optimization Problems
Ratios
Addition