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有一类抽象函数问题,常把与抽象函数有关的等式作为条件,在试题中频繁出现.怎样利用这些等式是解决此类问题的关键,本文介绍几种解题策略. 一、利用递推关系把与抽象函数有关的等式看作递推式,利用其递推关系寻找新的等式.
There is a class of abstract function problems. The equations related to abstract functions are often used as conditions and frequently appear in test questions. How to use these equations is the key to solving such problems. This paper introduces several problem solving strategies. First, using recursion. Relationships treat equations related to abstract functions as recursive and use their recursive relations to find new equations.