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PMC 2014-15 Q4
Author:
Arthur Lee
圖中圓形的數目隨n的大小而改變。當n＝5，圖中應該有多小個圓？
GeoGebra
New Resources
第八周作业
兩位數除以一位數（一）
【案例】2013年安徽高考15题
漂亮的摇摆曲线
垂直線的斜率
Discover Resources
正四面體交角
滑桿動態指令(動畫根本指令)
Newton's method
y=-3x+6(x>=3)
时钟 的副本
Discover Topics
Hypergeometric Distribution
Surface
Curve Sketching
Linear Functions
Similar Triangles