1 . 选修4-5:不等式选讲
已知函数
,
.
(1)当
时,求不等式
的解集;
(2)若存在
,使得不等式
成立,求
的取值范围.
已知函数
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/182f1141e6544a3788705b67e1a2f954.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/1667b0f2001f466cbfac51aa2307e5d9.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/901299c1622c4da4a2beb9cfff62679c.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/abb66068544a4b8ca4ebbedfefa14cd3.png)
(2)若存在
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/8a4b9f4572074af9974988d57b61e763.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/87578f0c5f144c1d9a8a87dedc379312.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614969856/STEM/b42ff0240a184f009ce4118902aab31d.png)
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2 . 已知关于
的不等式![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085973999616/1572085980110848/STEM/dba70f5f7f2147f4a05676430ca399df.png)
(1)当
时,求不等式解集;
(2)若不等式有解,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085973999616/1572085980110848/STEM/dba70f5f7f2147f4a05676430ca399df.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085973999616/1572085980110848/STEM/8f6fa0b96d1048c3a8b92e691753178a.png)
(2)若不等式有解,求
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085973999616/1572085980110848/STEM/e0493782cbb6450a8bed041885e1be98.png)
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2016-12-03更新
|
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2卷引用:2015届贵州省八校联盟高三第二次联考理科数学试卷
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3 . 选修4-5:不等式选讲
设函数
.
(1)当
时,求
的定义域;
(2)由常识:函数的定义域为非空集合,求实数
的取值范围.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab35db86c76c4d4b5a8dd4b368e261b5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)由常识:函数的定义域为非空集合,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-08-30更新
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2卷引用:贵州省凯里市第一中学2016-2017学年高二下学期期末考试数学(文)试题
4 . 【选修4-5:不等式选讲】
设对于任意实数x,不等式
恒成立.
(Ⅰ)求m的取值范围;
(Ⅱ)当m取最大值时,解关于x的不等式:
.
设对于任意实数x,不等式
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572505075499008/1572505081937920/STEM/b39e0f72ecd648e38c8795cadb77e80b.png)
(Ⅰ)求m的取值范围;
(Ⅱ)当m取最大值时,解关于x的不等式:
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572505075499008/1572505081937920/STEM/a4f8a44b63864e6ca0e20d1d3e6df1fc.png)
您最近一年使用:0次
2016-12-04更新
|
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2卷引用:2016届贵州省贵阳市一中高三第四次月考理科数学试卷