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Orthocentre

Author:uccke

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探究三角形的全等條件
垂直線的斜率
第八周作业
讀磅
【案例】2018年全国1卷理科12题

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try_111
NCM(2nd)
量角器
Compare areas by cutting shapes Q3
以 Unit Circle 了解 Sine 的正/負的副本

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Geometric Transformations
Vectors 3D (Three-Dimensional)
Special Points
Conditional Probability
Cylinder

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