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解析几何课本P_(34)习题二第5题是:设A、B两点坐标分别是(x_1,y_1)和(x_2,y_2),直线AB的倾斜角是α,求证: 通过教学实践我对此题颇感兴趣。虽题目本身是一般的,此题给出公式不仅应用在求点
Analytic geometry textbook P_ (34) Problem 2 Problem 5 is: Let A, B two coordinates are (x_1, y_1) and (x_2, y_2), the inclination of the straight line AB is α, verify: I practice through teaching This topic is quite interesting. Although the title itself is general, this question gives formulas that apply not only to the point of