递推数列是高中数学的重要内容之一,也是高考数学和竞赛数学的重点、热点问题,有不少的文章较全面的研究了一元递推数列通项的求法,而对二元递推数列通项的求法研究并不多见,尽管有些文章虽涉及到一些常用的方法,如消元法、构造辅助数列法、数学归纳法、矩阵法等,但未作进 Recursion sequence is one of the important content of high school mathematics, mathematics and competition math entrance math is also the focus of hot issues, there are many articles more comprehensive study of the one-way recursive sequence of the general method of seeking, and the binary recursion sequence Although there are some articles that involve some commonly used methods, such as elimination element method, constructing auxiliary sequence method, mathematical induction, matrix method, etc., they are not made