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不等式是中学数学的基础知识和重要部分,一直是各类考试、考查的热点与重点.不等式“恒成立”问题与“存在成立”问题,又是不等式中常见的题型,在各地的自主招生、高考、模拟考试中屡见不鲜.此二类问题对学生掌握基本数学思想与方法提出了较高的要求.学生对此二类问题往往感到容易混淆,且难以下手.
Inequality is the basic knowledge and an important part of high school mathematics, and it has always been the focus and hotspot of various examinations and examinations. Inequality The problem of “being established ” and the question of “being established ” are also common problems in inequality. Students from all over the country enrollment, college entrance examination, mock examinations are commonplace.These two types of questions on the students to master the basic mathematical ideas and methods put forward higher requirements.Students on these two issues tend to feel confused and difficult to start.