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联系数轴取不等式(组)解集,可以总结出解集的四种类型:①大大取大;②小小取小;③大于小,小于大,取中间;④大于大,小于小,无解.为增强学生对不等式知识内涵和外延的理解,提高解不等式(组)问题的能力,现对一些典型习题的解题方法作简要介绍.1方程(组)转不等式(组)例1 m取什么值时
The inequality equations (groups) solution set can be summed up by the number axis, and the four types of solution sets can be summarized: 1 large in size; 2 small in size; 3 greater in size, smaller in size, and larger in middle size; 4 greater in size, smaller than smaller size, and no solution In order to enhance the students’ understanding of the intensional knowledge and extension and improve the ability to solve inequalities (groups) problems, we now briefly introduce some typical problem solving methods. 1 Equation (group) to inequality (group) Example 1 m What is the value of