解不等式几乎是每年高考的必考题型、重点常是含参数的不等式,学生们感到很棘手,现举例介绍几种运用数学思想求解的方法.一、分域讨论思想把参数所取值的集合1分成若干个非空子集 A_1,A_2,……A_n(n≥2),使满足(1),A_i∩A_j=(?)(i,i∈N 且i≠j);(2)A_1 ∪A_1∪……A_n=I.分类标准视解题需要 Solution inequality is almost an annual examination of the exam questions, the focus is often the inequality with parameters, the students feel very tricky, and now an example of several methods to solve the use of mathematical thinking. First, the sub-domain discussion of ideas to set the value of the parameters 1 is divided into a number of non-empty subsets A_1, A_2, ... A_n (n ≥ 2) such that (1), A_i ∩ A_j = (?) (i, i ∈ N and i ≠ j); (2) A_1 ∪ A_1∪... A_n=I. Classification Criteria Questions Required