化归思想是高中数学中的一个核心思想,它渗透在各类题型中,简单来说所谓的化归思想,就是在解决数学问题时,不直接攻破问题,而是通过变形把要解决的问题,化归为某个或某类已经解决的问题,从而求得原问题的解决。此类题型常见的有以下几种:一、将未知的问题转化为已知的知识 The idea of ​​returning to normalization is a core idea in high school mathematics. It infiltrates into various types of questions. To put it simply, the so-called principle of returning to normalization is to solve problems in mathematics without solving the problems directly. Instead, The problem is classified as one or some of the already solved problems, so as to find the solution to the original problem. Such questions are common in the following categories: First, the unknown problem into known knowledge