数列问题一直是高考压轴题选之一,也是数学竞赛重要考点.数列问题往往灵活多变,且易于结合多个诸如不等式和函数等重难知识点,因而其考题往往体现出灵活性强、综合性大等特点,而其中数列通项的求解问题又是其核心.数列的通项公式是我们分析数列性质的重要依据,特别是一些综合性较强的 The series of questions has always been one of the questions in the college entrance examination and is also an important test point for math competitions. The series of questions are often flexible and easy to combine with multiple difficult issues such as inequalities and functions, so the questions often show strong flexibility and comprehensiveness. Large-scale characteristics, and the problem of solving the series of general terms is its core. The series of general formula is an important basis for the analysis of the nature of the series, in particular, some of the more comprehensive