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变更问题法是解题思路的重要方法之一,方法灵活、简捷,数学思想突出,值得推广、学习。所谓变更问题法,是指在解答数学题时,把一个命题等价变换为另一个命题,以利于问题的解决,它是化归与转化思想较高层次的体现。变更问题法是探索解题思路的重要方法之一。这种方法往往不被人们重视,故很少使用。其实用这种方法解题有其独
The method of changing the problem is one of the important ways to solve the problem. The method is flexible and simple, and its mathematical thought is outstanding. It is worth to promote and study. The so-called change problem method refers to the solution of mathematical problems, the equivalent of a proposition transformed into another proposition, in order to facilitate the resolution of the problem, it is a higher level of conversion and transformation of the embodiment. Change the question of law is to explore one of the important ways to solve the problem. This method is often not taken seriously, it is rarely used. In fact, this method has its unique problem solving