论文部分内容阅读
平面向量的数量积问题是江苏高考必考内容,往往放在填空题的第10题前后或者解答题中,有一定的难度但又不太难,有不少学生在此失分进而影响考试心态。本文通过一个小题来展示解决平面向量数量积问题的多种方法途径,探究其规律,揭示其数学本质。
The number of plane vector product is the Jiangsu college entrance exam content, often on the first 10 questions fill in the blank question or answer questions, there is a certain degree of difficulty but not too difficult, many students in the loss of points thus affecting the test mentality . This paper presents a variety of ways to solve the problem of the number of planar vectors through a small topic to explore its law and reveal its mathematical nature.