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转化与化归既是一种数学思想,又是一种数学能力,是高考重点考查的数学思想方法之一.数学问题的解决,总离不开转化与化归,因此,可以说转化与化归思想贯穿数学学习的始终.当解题思维受阻时,考虑寻求简单方法或从一种情形转化到另一种情形,也就是转化到另一种情境使问题容易得到解决,这种转化是解决问题的有效策略.转化有等价转化和非等价转化,等价转化前后是充要条件,所以尽可能使转化具有等价性,等价转
Transformation and transformation is both a mathematical thinking, but also a mathematical ability, is one of the mathematical thinking of the key points of the college entrance examination.Mathematical problems can not be solved without transformation and transformation, therefore, we can say transformation and transformation The idea runs through mathematical learning, and when the problem-solving mindset is hampered, consideration is given to finding a simple way or moving from one situation to another, that is, to a different situation in which the problem is easily solved, a conversion that addresses the problem Of the effective strategy.Transformation has equivalent transformation and non-equivalence transformation, before and after the equivalent transformation is necessary and sufficient conditions, so as far as possible to transform the equivalence, equivalent to