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圆锥的侧面展开图3D动画的副本
Author:
孙广仁
,
qianqianhouhou
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【案例】2018年全国1卷理科12题
圓的切線方程
垂直線的斜率
多邊形的面積
讀磅
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有向數
任兩正方形重組成一大正方形partII
乘法運算
曲面
边长可变的正三角形上莱洛转子的滚动
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Trigonometric Functions
Logarithm
Interest Calculation
Fractal Geometry
Quadratic Equations