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初三奥赛:圆的切割线问题
Author:
王俊辉
拖动点P,或点D,改变其位置,探究点F的轨迹。
GeoGebra
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四邊形的特性
找出對稱軸
兩位數除以一位數(二)
算柱 (兩位數)
錐體建築師
Discover Resources
Taiwan go
傅立葉級數 (2)
周界2
指数函数的副本
动圆与两圆外切与内切(1)
Discover Topics
Binomial Distribution
Equilateral Triangles
Trapezoid
Natural Numbers
Correlation