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Author:
清綺楊
GeoGebra
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【案例】2018年全国1卷理科12题
直角坐標平面上的旋轉變換
球體建築師
近似值:有效數字
異分母分數減法
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Trajectory of system: y'=y^2-y
數學1
Net of prism
第一組-垂心
對稱之美
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Sphere
Variance
Hypothesis Testing
Area
Numbers