1 . 设函数
,不等式
的解集是
.
(1)求实数
的值;
(2)若
对一切
恒成立,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda0d32c2d821c5f9d967f0c9470bc68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d24227741bf427e6bd73490baf3c3d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa85800cca03f7451f5cf2f9879cc0bc.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bcb69e181661c9b1803a83004adcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2017-02-08更新
|
427次组卷
|
3卷引用:2015-2016学年重庆市巴蜀中学高二理下学期期末数学试卷
解题方法
2 . 已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af3879e6229a3c149aa66a75e0af26f.png)
(1)若
,求不等式
的解集;
(2)若不等式
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa19785f2e470d94631d817d76ece66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af3879e6229a3c149aa66a75e0af26f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfbe2eb6c502d3d304bbe3c95b54061.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254712255cd776695334303cebb07064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a4b68d7be63ec223f642976a1087ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
3 . 已知函数
.
求不等式
的解集;
若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0600f8c3436216cf462464059222435c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ec4add31dd4c2d48aadbb7bd13e607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd1e64f71a799288538c9b34689f837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-07-17更新
|
242次组卷
|
2卷引用:重庆市南开中学2018-2019学年高二下学期期末考试理科数学试题
名校
4 . (1)求关于
的不等式
的解集;
(2)若关于
的不等式
在
时恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc6b71389bbb0468aa1f028cea5eac1.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ed55d9a1755eb12da3265fc351025c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2018-07-06更新
|
187次组卷
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2卷引用:【全国百强校】重庆市江津中学、合川中学等七校2017-2018学年高二下学期期末考试数学(理)试题
名校
5 . 选修4-5:不等式选讲
设函数
.
(1)求不等式
的解集;
(2)如果关于
的不等式
在
上恒成立,求实数
的取值范围.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1e0e95043b8dfb2a70e0181f6b0086.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a076fc43a6ff081fa298d718f940af.png)
(2)如果关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7be997173822c988d202d079342d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
194次组卷
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2卷引用:重庆市巴蜀中学2016-2017学年高二下学期期末考试数学(理)试题
6 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)不等式
的解集中的整数有且仅有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9161a5aba9236ce29a4b32b268538f49.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f989ac1ee80b0040b770d0d5a18b57a3.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc6d8acdd4244dc03f2bdc117c6ba30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680e9ef551b325387ab31dca1f893705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
185次组卷
|
4卷引用:2015-2016学年重庆八中高二下期末理科数学试卷
2015-2016学年重庆八中高二下期末理科数学试卷2015-2016学年重庆八中高二下期末文科数学试卷2017届河北定州中学高三上学期周练一数学试卷(已下线)专题11-2 不等式选讲归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)