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5.7-1 余弦函数的图象与性质
Author:
GeoGebra Institute of WuXi
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
漂亮的摇摆曲线
空间中两直线的位置关系
【案例】2013年安徽高考15题
第八周作业
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「相似三角形」任务1
Apollonius Problem gergonne
假的龍珠
两点电荷连线上电势的分布曲线（2017江苏高考题）
congruent triangle_provided by Mr Yeung Kar Chun
Discover Topics
Trigonometry
Cylinder
Calculus
Continuity
Quadratic Equations