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反证法对解高中数学题具有很重要的作用,很多高中数学问题不能直接证明,需要利用反证法进行分析,进而间接地解决问题。下面简单介绍在高中数学如何灵活运用反证法解答几类数学问题。一、运用反证法,巧妙解决否定性问题反证法也被称作归谬法,一般是引导同学们从题目需要证明的结论出发,巧妙解题。运用反证法解题的主要步骤是从问题的结论出发,逐层推理,找出命题条件与结论相互矛盾的地方,假设命题中需要证明的结论或者
Demonstration law plays a very important role in solving high school mathematics problems. Many high school mathematics problems can not be proved directly, and they need to be analyzed by using negative evidence to solve the problems indirectly. The following is a brief introduction to how to flexibly apply high school mathematics to solve some types of mathematical problems. First, the use of anti-law, cleverly solve the problem of negative Proof of evidence is also known as the law of return, the general is to guide students from the title need to prove the conclusions, clever solution. The main steps of solving the problem by using the law of the anti-syndrome are to proceed from the conclusion of the problem and reason in layers to find out the contradictions between the proposition conditions and the conclusions. Suppose the conclusion in the proposition needs to be proved or