不等式恒成立问题是历年高考的热点,它可以与函数、导数、数列、三角函数、解析几何等知识整合在一起,又可涉及到不等式证明问题和参数取值范围问题,渗透着化归、数形结合等重要数学思想,能有效地检测学生对中学数学知识中蕴涵的数学思想和方法的掌握程度,考查学生综合运用知识的能力.本文举例说明几种常见不等式恒成立问题的求解策略,以期对 Inequality constant problem is the establishment of college entrance examination in recent years, hot spots, it can function, derivatives, series, trigonometric functions, analytic geometry and other knowledge together, but also related to the problem of inequality and parameter values ​​range, permeated with the return to the number Shape combination and other important mathematical ideas can effectively detect the students mastery of mathematics ideas and methods contained in the mathematical knowledge of middle school to examine the ability of students to comprehensively use knowledge.This paper illustrates some common inequality constant established problem solving strategy, Correct