名校
解题方法
1 . 设函数
.
(1)当
时,求函数
的定义域;
(2)若函数
的定义域为
,试求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30a996189e7d1804d152359570500ff.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
164次组卷
|
2卷引用:2016届宁夏吴忠中学高三上第四次月考文科数学试卷
13-14高三上·河北唐山·期中
2 . 已知函数
.
(1)求不等式
的解集;
(2)若关于
的不等式
的解集非空,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2014/1/2/1571455322660864/1571455328387072/STEM/1f76880e4cc04722a32728cb608fcca7.png)
(1)求不等式
![](https://img.xkw.com/dksih/QBM/2014/1/2/1571455322660864/1571455328387072/STEM/aa845b51ec434a34b1223d76336b9aa0.png)
(2)若关于
![](https://img.xkw.com/dksih/QBM/2014/1/2/1571455322660864/1571455328387072/STEM/9b6923bf6ea9496cbe3c6b8a6261410b.png)
![](https://img.xkw.com/dksih/QBM/2014/1/2/1571455322660864/1571455328387072/STEM/7c5ac8e9ed114363a39563046d5564c6.png)
![](https://img.xkw.com/dksih/QBM/2014/1/2/1571455322660864/1571455328387072/STEM/279baf93707e45f5a5f0874ea53c127b.png)
您最近一年使用:0次