1 . 【选修
:不等式选讲】
已知
.
(1)当
,解关于
的不等式
;
(2)当
时恒有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c4ab4b9e8a2d3867554364713b999.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b31e60f49897fbd5412f52a37f9c368.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0219fc614c97450260097d8bf03051f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08b810a874c096f35574e5f865aa6cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efe6ed0d1b12262d3d225437346ae91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018-05-02更新
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310次组卷
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4卷引用:2016届陕西省高三高考全真模拟(五)考试数学(理)试卷