函数是高中数学课程的主干知识之一,而函数中不等式恒成立问题可以综合地考查函数、导数、不等式等高中数学的重点知识,历来是高考的重点、难点和热点,一般都出现在后面的解答题中,且难度一般较大,致使很多学生都望而却步。本文针对函数中带不等式问题的常见类型加以归纳,并总结出了各种常见类型问题的基本解题方法及思路。 Function is one of the main knowledge of high school mathematics curriculum, and the inequality of the function is always established problem can comprehensively examine the key knowledge of mathematics in the function, derivative, inequality and other high school, has always been the focus of college entrance examination, difficulties and hot spots, generally appear in the back Answer questions, and the difficulty is generally larger, resulting in many students are prohibitive. In this paper, we summarize the common types of Inequalities with functions, and summarize the basic solutions and ideas of various common types of problems.