名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5281eb314ac1e5fac77aa77f18f130fa.png)
1
当
时,求不等式
的解集;
2
若关于x的不等式
有实数解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5281eb314ac1e5fac77aa77f18f130fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5036e26e77152eb05955d2aceca93950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3796b30fdd80b4bdc34ef90c338a01aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9a86e539e52dda14dba678aacd00e9.png)
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2019-04-16更新
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5卷引用:【市级联考】新疆乌鲁木齐2019届高三第二次质量检测文科数学试题
名校
2 . 已知关于
的不等式
有实数解,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3c7676a8558877fb9e1428eae962a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-08-09更新
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2卷引用:陕西省宝鸡市教育联盟2019-2020学年高二下学期期末文科数学试题
解题方法
3 . 已知函数
.
(1)解关于
的不等式
;
(2)若函数
的图象恒在直线
的上方,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ad6ab82e02b27f0c6cb22210745758.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dbd58b21a94cf93f4623c07452b102.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e623201b413de82299a7e79cab5307f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-04-20更新
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589次组卷
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4卷引用:2020届黑龙江省齐齐哈尔高三二模理科数学试题
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec402b6a5d8f49fa31c391ca74a2a48c.png)
(Ⅰ)解关于
的不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23df705d251c27c8c691279d26f344de.png)
(Ⅱ)若
的解集非空,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec402b6a5d8f49fa31c391ca74a2a48c.png)
(Ⅰ)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23df705d251c27c8c691279d26f344de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a600b1187fd07dd0ef3a51b6157edc35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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5 . 已知函数![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/f84adeb69ab4407191c9eaa8189de5f1.png)
(1)解关于
的不等式
;
(2)若
的解集非空,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/f84adeb69ab4407191c9eaa8189de5f1.png)
(1)解关于
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/01a7bea2ba954cbd93f4df0171cfe65f.png)
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/ecf1bf7d6405424b86be4c8fcc8df124.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/9d573282e62e4d27abb1cd75d9df6187.png)
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/5bd933ed30a34a528556a456a39a84a4.png)
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2016-12-03更新
|
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2卷引用:2014-2015学年河北唐山一中高二下学期期末理科数学试卷
2011·山西忻州·一模
名校
6 . (Ⅰ)解关于x的不等式
;
(Ⅱ)若关于
的不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb079f4083bce8996c4fe50683eb70b6.png)
(Ⅱ)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336a3bcf6d32663ca13da0d9b51e6520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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