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解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a035600b3aa14634286633aba0316147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45afcca008424dac7c89a74d56eb4f1.png)
(1)若
的解集为
,求不等式
的解集;
(2)若任意x≥3,使得f(x)<1恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a035600b3aa14634286633aba0316147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45afcca008424dac7c89a74d56eb4f1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ccc0e1e007b4f294b84f45d1e472e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5fa6dff2c57ae85f6bbc797b50cfcf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac5d12646caa056f3d6155ef8892a269.png)
(2)若任意x≥3,使得f(x)<1恒成立,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2016-12-05更新
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637次组卷
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4卷引用:重庆市万州龙驹中学2018-2019学年高二下学期期中(文)数学试题