1 . 已知函数
,若
的解集中有且只有一个正整数,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75c9158c8c2393077ee600558cfc2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2 . 已知函数
.
(1)当
时,求
的最小值.
(2)若
的解集包含
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23bae6c674e5741a3079461011bab9d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4509817be39bef4bcde115996ee39e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
3 . 已知函数
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若方程
的一个实数根为2,求
的值;
(2)当
且
时,求不等式
的解集;
(3)若函数
在区间
上有零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3d977effa846fca28c22c9696d4b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0008d46dc238d710a1efe7e2c17237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911cc53f69bdca4e7f47dee28b7b5dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc68350d4a250d83aef73d7e2794816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2019-11-30更新
|
932次组卷
|
6卷引用:湖北省荆州市沙市中学2019-2020学年高一上学期期中数学试题
名校
4 . 已知函数
满足
.
(Ⅰ)当
时,解不等式
;
(Ⅱ)若关于x的方程
的解集中有且只有一个元素,求a的取值范围
(Ⅲ)设
,若对
,函数
在区间
上的最大值与最小值的差不超过1,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f7d6f51562c4f88f6e25ea1242f910.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(Ⅱ)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1798b8db9226f5c6a773b678e299d10.png)
(Ⅲ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119e8f7ecf67b46400cba51ec6f818ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994e2170bd72e0a769bae7552a80efd3.png)
您最近一年使用:0次
2019-07-04更新
|
2508次组卷
|
5卷引用:湖北省天门市、仙桃市、潜江市2018-2019学年高一下学期期末考试数学试题
5 . 已知函数
.
(1)讨论不等式
的解集;
(2)若对于任意
,
恒成立,求参数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c320c1a1eae939018226067144497b4.png)
(1)讨论不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e26bbf4cc946214eb53eb269118082.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6205a6a2f8c60d0108bc4ed12785e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2787a524314830b20c8404f973be41e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-06-19更新
|
739次组卷
|
2卷引用:【校级联考】2018-2019学年湖北省武汉十五中等三校联考高一(下)期中数学试卷
名校
解题方法
6 . 不等式组
的解集记作
,实数
满足如下两个条件:①
;②
.则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7bf72d03e6e10539a69b82805781c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85939c704078c832f9737af1a126492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4ee0b9a4d86a006301d9b05a9b037f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-04-18更新
|
455次组卷
|
5卷引用:【全国百强校】湖北省荆州中学2018届高三全真模拟考试(一)数学(理)试题
名校
解题方法
7 . 已知
是定义在
上的奇函数,且
,若
时,有
.
(1)求证:
在
上为增函数;
(2)求不等式
的解集;
(3)若
对所有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67f7b127acdedafc2e9a61bb9483a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca3e05cadfe77556641fcfb130e717f.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c3596a700e789f9f8366c5a618a85.png)
(3)若
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572615649533952/1572615655006208/STEM/c1ba12d9880240e1b1b56566ff478146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e62aebcf3cec0b67ca9e8b52fa7a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2016-12-04更新
|
622次组卷
|
2卷引用:2015-2016学年湖北省汉川市高一上学期期末考试数学试卷
名校
8 . 已知函数
,则下列说法正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a4a918bb38ac075acd36c60a7225499.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
昨日更新
|
326次组卷
|
3卷引用:湖北省云学名校联盟2023-2024学年高二下学期5月联考数学试题A卷