平面向量是高中数学教材中的新增内容,运用向量知识解题常可收到化繁为简、化难为易的神奇功效,随着新教材的逐步实施,它已成为高考数学的新宠, 但学生在初学这部分内容时,往往会出现这样或那样的错误,现列举几种常见错误,以期起到防患于未然的作用． Plane vector is a new content in high school mathematics textbooks. Using vector knowledge to solve problems can often receive the magical effect of simplifying and simplifying difficult things. With the gradual implementation of new teaching materials, it has become the new darling of college entrance examination mathematics, but When students begin to learn this part of the content, there will often be one or more mistakes. Here are a few common mistakes, in order to play a preventive role.