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化归不仅是一种重要的解题思想,也是一种最基本的思维策略,更是一种有效的数学思维方式。所谓的化归思想,就是在研究和解决有关数学问题时采用某种手段将问题通过变换使之转化,将复杂问题化为简单问题;将难解的问题化为容易求解的问题;将未解决的问题化为已解决的问题。总之,化归在数学解题中几乎无处不在,化归的基本功能是:生疏化成熟悉,复杂化成简单,
To return to normalization is not only an important problem-solving thinking, but also a most basic thinking strategy, but also an effective mathematical thinking. The so-called “return to the idea” is to study and solve the mathematical problems by some means to transform the problem to transform it, the complex problem into a simple problem; the difficult problem into easy to solve the problem will not be resolved Into a problem that has been solved. In short, the return to the mathematical problems almost everywhere, the basic functions of return to life are familiar: become familiar, complex into simple,