高中数学内容相对较多,理论分析、抽象概念对学生来说有一定困难,利用极限思想求解极值问题就是其中一项重要内容.极限思想是近代数学研究中的一种重要思想,在分析函数问题、数列、不等式、以及立体几何中灵活应用,不仅可以避免解题繁琐、冗长的运算,理顺推理,优化解题的过程,降低解题的难度,而且对加强学生对无限以及近似等概念的理解与认识有着举足轻重的作用.巧用极值,巧妙地解决数学疑难问题,往往能够突破固有思维方式,打开一片新的思维空间,为数学问 High school mathematics content is relatively more, theoretical analysis, abstract concepts for students have some difficulties, the use of extreme thinking is one of the most important content of the extreme problem.Elimit idea is an important idea in modern mathematics research, analysis of the function The problems, series, inequalities, and flexible applications in solid geometry not only can avoid the cumbersome and lengthy calculation of the problem, but also improve the process of solving the problem and the difficulty of solving the problem. Moreover, the concept of unlimited and approximate students Understanding and understanding plays a decisive role.Create the extreme, cleverly solve mathematical problems, often able to break through the inherent mode of thinking, open a new space of thinking for mathematics