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极限是一个重要的数学概念,极限思想是一种重要的数学思想,用极限思想解题,就是从无限逼近的角度去观察、分析、研究数学对象的运动、变化规律.利用极限思想处理某些数学问题,能洞察问题的本质,迅速找到解题方向或转化途径,起到化难为易、化繁为简的作用.一、用极限思想分析几何图形的极端情形如果几何图形中有不确定的因素,那么我们就可以从分析这些不确定的因素入手,观察这些不确定的因素变化时图形变化的状
Limit is an important mathematical concept. Limit thought is an important mathematical thought. To solve the problem with limit thinking is to observe, analyze and study the laws of movement and change of mathematical objects from the perspective of infinite approximation. Mathematical issues, can insight into the nature of the problem, the problem-solving direction or quickly find the way to change, play the difficult for the easy, simplification of the role of I. First, the ultimate idea of the extreme geometry analysis If there is uncertainty in the geometry Factors, then we can start from the analysis of these uncertain factors, observe the changes of these uncertain factors when the shape of the change