论文部分内容阅读
向量是联系代数关系与几何图形的最佳纽带.它可以使图形量化,使图形间关系代数化.近五年的江苏高考数学给予向量足够的重视,对向量的考察都放在第12题~14题.向量与三角形相结合,可以有效地将向量的加减法、数量积与正弦定理、余弦定理进行综合考察,充分体现数学内容之间的内在联系.本文以与三角形外心有关的向量问题为探究载体,着重探讨这类问题的一些性质和应用,充分体现一线数学教师对一类题目进行分析、总结和提升,便
Vector is the best link between algebraic relation and geometry.It can make the graph quantify and algebra the relationship between the graph.Jiangsu college entrance examination math in the past five years has given enough attention to the vector and the investigation on the vector are all on the 12th ~ 14. The combination of vector and triangle can effectively integrate the addition and subtraction of the vector, the product of the number and the sine and cosine theorems to fully reflect the intrinsic relationship between the contents of the mathematics.In this paper, The problem is to explore the carrier, focusing on some of the nature and application of such problems, fully reflects the first-line mathematics teachers to analyze, summarize and improve a class of questions, then