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12F
Author:
Wu Xiao-Ren
GeoGebra
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双心四边形
三角函数 的副本
探究三角形的全等條件
龙形曲线-分形龙2
科氏力 (Coriolis Force)
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腳踏車輪圈
Life Examples of Quadratic Functions 生活中的二次函數
周界4B (1)
hkdse 2014 by mr lo wy
F4_Ch9.1 任意角的三角比
Discover Topics
Piecewise Functions
Trigonometry
Dilation
Cylinder
Scalene Triangles