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二面角的副本
Author:
xiaoqing xia
,
qianqianhouhou
二面角的概念,拖动A、E点改变半平面
GeoGebra
本课件昆山老季制作 QQ:35266477
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斐波那契螺旋弧线(表格法)
平行線的判定
中华人民共和国国旗
折扣
科赫雪花
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Sequence指令練習(二維4)
rabbit
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
反射(鉛垂線、水平線及斜線) Reflection (vertical line, horizontal line and line)
雙曲線3 等軸法
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Optimization Problems
Incircle or Inscribed Circle
Differential Equation
Equilateral Triangles
Mathematics