数列是高中数学的重点内容,也是高考重点考查的内容之一,其中由递推公式求通项公式的问题出现频率较高,形式较多.当然,解决这类问题有两种基本方法,即迭代法和归纳—猜想—证明的方法,但有时较为麻烦,难度较大.笔者研究发现由递推公式求通项公式的方法都可以化为两种基本形式,并对此进行了总结,以飨读 The number of high school mathematics is the key content, but also one of the key aspects of the entrance exam, in which the recursive formula to formulate the general problem of the higher frequency of occurrence, there are many forms. Of course, there are two basic ways to solve such problems, namely Iterative methods and inductive - Guess - Proof methods, but sometimes more troublesome, more difficult.The author found that the recursive formula to find formulas for the formula can be turned into two basic forms, and summed up in order to Read