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Internal tangent
Author:
jaycheung2016plk
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三角函数线
商高定理\水2的副本
勾股探究
希波克拉底月牙型面积
正切函数图像
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peacock2
梯形
Compound Inequalities
PMC 2016-17
未命名
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Symmetry
Fractal Geometry
Cuboid
Parabola
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