已知函数
.
(1)解不等式
;
(2)设
,若关于
的不等式
解集非空,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34497c23039e8d32d220d672b8681e65.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0beffff59e4dc7ac1fdec8b29ef8c0.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1df29f303dda1c198a21382a1bbbf6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2016-12-04 19:27:38
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适中
(0.65)
【推荐1】已知函数
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【推荐2】设全集
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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(1)求集合
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(2)设集合
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【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5110b6f1a115d1a38c7df6b29d37df0e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d3feee85e869ea9ab561ff63d46a2.png)
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适中
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【推荐1】已知
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【推荐2】设函数
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