10-11高三上·福建厦门·阶段练习
名校
解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5284a344160f155bea02e2c61249eb7f.png)
⑴解不等式
;⑵若
对于
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5284a344160f155bea02e2c61249eb7f.png)
⑴解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea998345984b6d1bbffa1e667365ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427ddc261e4aea13a25fa479749f4074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274b4edbba503ea1b3ac1e3d1bbfe91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
2 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
,在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3307ce1fb03800e7265000a13c99a6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec7ef12927ef4e2d8f6721a0ae6b15.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6000b174147cec2de26041837aec1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806256b771e36fbfdb7dedcbf9a9869d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
662次组卷
|
3卷引用:福建省泉港一中2016-2017学年高二下学期期末考文科数学试题
3 . 选修4-5:不等式选讲
设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c58f44c79a46db2684653080bcd5b50.png)
(1)若不等式
,求实数
的取值范围;
(2)当
时,若
恒成立,求
的最大值.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c58f44c79a46db2684653080bcd5b50.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac37ff706ed92ae772c294c1c7d312d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d721fadf2501c71d6464a30d5ed7aef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
4 . 已知函数
.
(Ⅰ)解不等式
;
(Ⅱ)设正数
满足
,若不等式
对任意
都成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f3e8251d2e3ee394e530b97b396bd2.png)
(Ⅰ)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cdcf7c939a3de2615e1c453c48bae01.png)
(Ⅱ)设正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b23c05ea89b5750b60da7885706661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56fc4bcb292d3a4206c7b4e6bd335de.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572434216075264/1572434222235648/STEM/e4f3956752e14706b154c64e477512dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 选修4-5:不等式选讲
已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62cab691515f1a21a4b57fc3bf107332.png)
(Ⅰ)若
,求
的解集;
(Ⅱ)对任意
,任意
,
恒成立,求实数
的最大值.
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62cab691515f1a21a4b57fc3bf107332.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a526295479b18c9382a74db2e8612a.png)
(Ⅱ)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664d9ee5169a59edafcf497e523ed3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0be07495dbc744e1ecabac66f748218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf37de61b47595ee9cee74367a6cb21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
6 . 选修4﹣5:不等式选讲
已知f(x)=|ax+1|(a∈R),不等式f(x)≤3的解集为{x|﹣2≤x≤1}.
(Ⅰ)求a的值;
(Ⅱ)若
恒成立,求k的取值范围.
已知f(x)=|ax+1|(a∈R),不等式f(x)≤3的解集为{x|﹣2≤x≤1}.
(Ⅰ)求a的值;
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572596167262208/1572596173455360/STEM/efae6cf3afe14ed49ca8708f7b32baca.png)
您最近一年使用:0次
7 . 设函数
.
(1)若
,
,证明:
;
(2)若
,求a的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/12/24/1572393092431872/1572393098698752/STEM/321b707a16da47e993b1610d71906aff.png)
(1)若
![](https://img.xkw.com/dksih/QBM/2015/12/24/1572393092431872/1572393098698752/STEM/20c2240065a6498690addf4a22d4dbd9.png)
![](https://img.xkw.com/dksih/QBM/2015/12/24/1572393092431872/1572393098698752/STEM/1f03e7ed0cf24c27a12273950183af9a.png)
![](https://img.xkw.com/dksih/QBM/2015/12/24/1572393092431872/1572393098698752/STEM/733bcb579876403a990aaeb93e8b341d.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2015/12/24/1572393092431872/1572393098698752/STEM/caef1d3d5ccd41628d241c5cdcd5b97f.png)
您最近一年使用:0次
8 . 已知函数
.
(1)当
时,求函数
的定义域;
(2)若关于
的不等式
的解集是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f74b1a7d32707c61a3c3451ab7458153.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daca8f97e33229f87a339d2d0584d2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-02更新
|
1112次组卷
|
2卷引用:福建省闽侯第六中学2018届高三上学期第一次月考数学(文)试题