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餘弦定理

Author:yuchengda

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球體建築師
兩組對邊相等的四邊形
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
異分母分數減法

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几何体
生活中的平面圖形關係─平分
探索三角函数的图像
座位奇想(因應疫情加大座位間隔) 最密堆積
Copy of Multiplication of polynomials 2 (多項式的乘法 2)

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Fractions
Statistical Characteristics
Surface
Linear Programming or Linear Optimization
Square

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