在高中数学中,知识是基础,方法是手段,对含参数的不等式求解时,一般应分类讨论,分类的原则是不重复不遗漏,讨论方法逐类进行,要注意综合讨论结果,使解题步骤完整,最后解集应取各部分的并集。 In high school mathematics, knowledge is the foundation, the method is a means, when solving the inequality with parameters, the general should be classified discussion, the principle of classification is not repeated without omission, the discussion method by class, pay attention to comprehensive discussion of the results to solve the problem Complete steps, the final solution set should take all parts of the union.