1 . 选修4-5:不等式选讲
已知函数
.
(Ⅰ)解不等式
;
(Ⅱ)设
,若关于
的不等式
解集非空,求
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be3bc63c4b2b34681f808c1c1e3a780.png)
(Ⅰ)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffc26b7ef9e08343c2c13cb87226927.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3cf5d521bf6cf8484bbad3caade3487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 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)
您最近一年使用:0次
2016-12-04更新
|
426次组卷
|
2卷引用:2016届河北沧州市高三4月调研数学(理)试卷
3 . 已知函数
,![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/d08ccfb3717045d29f0bf1f35bff4a1c.png)
(1)当
时,求不等式
的解集;
(2)设
,且当
时,
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/0c43aa43e70f4fa49f596c73258f4d01.png)
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/d08ccfb3717045d29f0bf1f35bff4a1c.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/1f6cbe6c860d40dab65a06ff08876d71.png)
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/2dac5cdeafa347b59c3085852058bd1e.png)
(2)设
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/b01c0171e1f24099935797833917b8ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2bb3cbea04e061b8562f9c08e353b3.png)
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/b2f9e2e0bf4b492f8a373a93ff8fed46.png)
![](https://img.xkw.com/dksih/QBM/2016/8/11/1572974831960064/1572974838095872/STEM/1695cf11f8bc451ea3e4188c282d11b1.png)
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