名校
1 . 已知函数
.
(1)当
时,解关于x的不等式
;
(2)当
时,若对任意实数
,
都成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613e7b457ff2c49d5e879f2175544f0a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6188d5c1bb6464ce1683841244da7bd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc91d92eb161e54def20b039d2089201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61db73a5a9bce4ece8259a4c7d29376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-04-13更新
|
376次组卷
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5卷引用:【全国百强校】福建省厦门市厦门外国语学校2019届高三最后一模数学(文)试题
名校
2 . 已知函数
函数
,则不等式
的解集为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7d2d6437c9004f82c22842b5f67de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e00e7e519a033c40e7b2a0e0c2beac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87bdd369fbcb0a9a19e6d7f26c193818.png)
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2018-02-22更新
|
494次组卷
|
8卷引用:福建省厦门市湖滨中学2018届高三下学期高考适应性考试数学(理)试题
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3 . 不等式
的解集为
.
(1)求m的值;
(2)设
,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf21ddbdf50055a33fa271d954c3ea23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493d16a261e909d2faf6b5386b8fa5d5.png)
(1)求m的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f54dd43a1dae8f08160db63ff0e02c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3539640e5344567a1071b64751cecc8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fde4f8aa8e36636dd397384a1fe8da.png)
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4 . 设函数
.
(Ⅰ)当
时,求不等式
的解集;
(Ⅱ)若函数
的图象与直线
所围成的四边形面积大于20,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7908cad08006734517685c84f02e4ed7.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc23217fe5d727feace1509cda9cc2be.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb440a01fdba9adf3a9bab4064083d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925d5b244cfed97e892bed8802712886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018-04-29更新
|
507次组卷
|
5卷引用:2019届福建省厦门双十中学高三热身考试数学(文)试题
5 . 已知
记
,则
的大小关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7322f341da6a369f452ddaf5cd141e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b685b755b352c489f15e9c3ef53e457f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
496次组卷
|
2卷引用:2016届福建省厦门一中高三上学期期中理科数学试卷
解题方法
6 . 已知函数
.
(1)解不等式
;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade3d8436ad65a3bd7cb0a7c5743f30d.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705e64c6f20c5ba1bfeeb92eb2a31b04.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5127bb3cf7b915eaeedb45028f3ec1a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2116809fe4cae0c172c7ea0d63564a93.png)
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2020-05-25更新
|
143次组卷
|
2卷引用:福建省厦门市2019-2020学年高三毕业班5月质量检查文科数学试题
名校
7 . 选修4-5:不等式选讲
已知函数
.
(1)当
时,求不等式
的解集;
(2)设关于
的不等式
的解集为
,且
,求
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27eed224c5a272905142c7616cf0c94.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
(2)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58f827b4f0a9307b714f44be5150fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b9d54224522d551dc714603f0291e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018-03-28更新
|
400次组卷
|
3卷引用:福建省厦门市2018届高三下学期第一次质量检查(3月)数学(文)试题
名校
8 . 选修4-5:不等式选讲
已知函数
.
(1)当
时,求不等式
的解集;
(2)
,
,求
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4ae7bb604f5dedddcd5101a24a51a7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d2c1eff78d830e24a27f1ba612c2f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018-05-09更新
|
316次组卷
|
5卷引用:2020届福建省厦门一中高三上学期月考理科数学试题
名校
9 . 已知函数
,若
的解集是
或
.
(1)求
的值;
(2)关于
的不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95dfa5e3152a99e76cc97b452d3ff89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bf0995f32a13d0a9e423f3e88ab271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02153969ff26d2a681c7edc98712a694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cd4e5d7e63d3862675cf9b1d4175cc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e714fb56e06b6b9133582e7437033400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-12-16更新
|
462次组卷
|
3卷引用:福建省厦门第一中学2019届高三3月模拟数学(文)试题
名校
解题方法
10 . 已知函数
.
(1)当
时,解不等式
;
(2)若
,
,
的最小值为1,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ffac4ed594636b076cb4cc9e18f102.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bcf1825497d48d0e05ea938f5fc5a0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0acea2598d26b89da69d9e43c6c285f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c38d31b4dd0a6e6cb7918eafe55db9.png)
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