确定不等式中的参数取值范围,是高中数学教学中的难点,也是高考的重点、热点.这类问题常常使学生感到束手无策,即使能解,过程也十分繁锁,或解而不全.针对这种情况,本文给出一些基本解法,加以探讨.一、分离参数法分离参数法就是通过不等式的同解变形把参数分离出来,转化为形如α≤f(x)或α≥ Determining the range of parameters in inequality is a difficult point in high school math teaching and is also the focus of the college entrance examination.This type of problems often make students feel helpless, even if it can solve, the process is very complicated, or incomplete solution. This article gives some basic solutions to be discussed.Separate parameter method Separation parameter method is through the inequalities with the solution of the deformation of the parameters are separated out, transformed into a shape such as α ≤ f (x) or α ≥