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本文介绍不等式组的解集在五种情形下的逆向运用,供同学们学习参考. (一)若不等式组的解集是x>b,则a≤b. 例1 (威海市中考题)若关于x的不等式组的解集为x>3,则m的取值范围是( )
This paper introduces the reverse use of solution sets of inequalities in five cases for students to learn from. (1) If the solution set of inequalities is x>b, then a ≤ b. Example 1 (information for Weihai City) For the set of solutions of the inequality group of x is x>3, then the range of m is ()