求数列极限是在理解数列和数列极限的定义以及掌握数列极限四则运算法则的基础上,利用常见数列的极限进行计算求值的活动,是《极限》一章的重点和难点,也是高考常考的题型.本文归纳了求数列极限的几种常见类型及求法.常用极限:limn→∞C=C(C为常数),nl→im∞n1=0,limn→∞1nk=0 Seeking the limit of the number of columns is the key and difficult point in the chapter of “Limit”, which is also the common entrance examination of the entrance examination based on the understanding of the definition of the limit of the number of columns and the number of columns and the algorithm of knowing the limit of the number of columns. .This article summarizes several common types and their solutions to find the limit of the number sequence. Common limits: limn → ∞C = C (C is a constant), nl → im∞n1 = 0, limn → ∞1nk = 0