名校
解题方法
1 . 已知函数
,
,且
的解集为
.
(1)求
的值;
(2)若
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91ee1b05e935b84506e107b24ea601d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771f659498ecca2fa48252ddf94dffc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d87224f133c06175565702796927a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b2d25295c378dc99f3c5938a5804b3.png)
您最近一年使用:0次
2017-08-18更新
|
120次组卷
|
2卷引用:四川省南充高级中学2016-2017学年高二下学期期末考试数学(文)试题
2010·吉林·模拟预测
2 . 关于
的不等式
.(Ⅰ)当
时,解此不等式;
(Ⅱ)设函数
,当
为何值时,
恒成立?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98de3a6f6ecde4e01a1a280f8467d76d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
(Ⅱ)设函数
![](https://img.xkw.com/dksih/QBM/2012/3/6/1570789981249536/1570789987008512/STEM/a2a2e1470c4d40c68228a7686da8be97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2012/3/6/1570789981249536/1570789987008512/STEM/3ec2cd9a40f444c49b249701da58c1cb.png)
您最近一年使用:0次
3 . 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)
您最近一年使用:0次
2016-12-03更新
|
805次组卷
|
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
4 . 设
.
(1)当
时,
,求
的取值范围;
(2)若对任意
恒成立,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b081916f918fa50d4a585d66bc929233.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00879cffccc124857ca755a8c345e45f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a9f7884d2a1a1f304d8d468d8dd47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d790a55eb7e799ab71ad8310d5de0782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2011·吉林·一模
5 . 已知函数
(
为常数,且
);
(1)当
时,解不等式
;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9091af5a59cf6a9115673ec627622af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab989f85a681b41c29465d4be74b789f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
11-12高三上·山东济南·阶段练习
6 . 若关于
的不等式
有解,则实数
的取值范围是
![](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)
您最近一年使用:0次
名校
7 . 不等式
的解集为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e81968793ed1b394b36ea950599cdf5.png)
您最近一年使用:0次
8 . 已知集合
,
,则下列结论正确的是
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571977837633536/1571977843122176/STEM/14782701307e4c5ebd75b222ca30ebd8.png)
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571977837633536/1571977843122176/STEM/df6a73160e9447f598625a386cfe4ce6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d236f7a5ce5d8b8251b124983465a66c.png)
您最近一年使用:0次
10 . 选修4-5:不等式选讲
设函数
.
(Ⅰ)若不等式
的解集为
,求
的值;
(Ⅱ)若存在
,使
,求实数a的取值范围.
设函数
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/423fe6897463415e963fbe9456849cac.png?resizew=139)
(Ⅰ)若不等式
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/df48b90655d54353a43287cdf3e63d25.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/5a8603f6bd364f6fb9ada7d0e234b004.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/4840529e3f6a40c8941ef93a5674fc77.png?resizew=13)
(Ⅱ)若存在
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/df3e118bf471492784752aa9261e0bb3.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/c648c975b193416e8263d1b6a4a5e94b.png?resizew=97)
您最近一年使用:0次