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解答数学问题是有规律可循的,在解题时,要注意总结解题方法和规律.在解决每一道习题后,要注重总结与反思,提炼出一些解题方法和规律,从而提升解题能力.下面笔者以一对孪生高考试题为例,谈谈笔者对解题方法和规律的认识.(2013年陕西高考数学第21题)已知函数f(x)=ex,x∈R.()+()()-()
Solving mathematical problems is a rule-based, problem-solving, we should pay attention to summarize the problem-solving methods and laws .After each solution to the problem, we must pay attention to summarize and reflection, extract some of the problem-solving methods and laws, thereby enhancing the problem-solving Ability. The following author with a pair of twin college entrance examination questions as an example, to talk about the author’s understanding of the problem-solving methods and laws. (2013 Shaanxi college entrance examination mathematics twenty-first) known function f (x) = ex, x∈R. ) + () () - ()