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向量的数乘是中学数学中的重要内容之一,在解析几何中有着重要的作用.本文就向量的数乘在解题中的应用加以探究,供师生参考.一、证明(或判断)三点共线
The multiplication of vectors is one of the important contents in middle school mathematics. It plays an important role in analytic geometry. This paper explores the application of the multiplication of vectors in solving problems for reference by teachers and students. First, proof (or judgment) Three points collinear