不识庐山真面目,只缘身在此山中——例说含参不等式恒成立问题

Do not know the truth of Lushan,just because in the mountain——Cases on permanent establishment of inequality

数学中的恒成立问题,涉及到函数的图象与性质,渗透着化归与数形结合思想,加强这一问题的训练有利于培养学生的综合解题能力。因此这已经成为历年高考的一个热点。本文试从恒成立问题的几种常见方法入手谈谈个人的一点粗浅认识。

The permanent establishment in mathematics related to the image and nature of the function,with ideas of combination of number and shape,to enhance the training of this issue will help students train comprehensive problem-solving ability.Therefore,it has become a hot topic in college entrance examination over the years.This paper from some common ways of permanent establishment to talk about a little superficial understanding of the individual.