解题方法
1 . (1)已知不等式
的解集为M,若a、
,试比较
与
的大小;
(2)已知对于任意非零实数a和b,不等式
恒成立,求实数x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70be21d700725c712cd7a0f489480c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab92728b35ed5798e07a2b0095bfcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbc3eb703a37d9dd29d3825f1e9338e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7266b2ef457b8ddeee3fa2cc24022e.png)
(2)已知对于任意非零实数a和b,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61604556a81ecdfc51c6dd1751a7a5e1.png)
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2 . 设不等式
的解集为
,且
,
.
(1)试比较
与
的大小;
(2)设
表示集合
中的最大数,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b3c5ce0fd88af42a4c0103070016e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ad43edf388c096e7704d92340bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab92728b35ed5798e07a2b0095bfcc1.png)
(1)试比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdaba8b1591046933f2f725b6b1bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dec63e6d30a41fcc8972397875bf46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a6af55a48a8e926e6133c4d33ecf8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
您最近一年使用:0次