已知函数
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
(1)若
在区间
上有零点,求实数
的取值范围;
(2)设函数
,是否存在实数
,对任意给定的非零实数
,存在唯一的非零实数
,使得
?若存在,求出
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2499f86f8f075813e469e0e1840b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69abe959988e4c8c0739f5857ccfb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569086a8fca3b6252adb47e587b15f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ccba53c39211a7b000eb029c7a8c11a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ddc30941deb67daae9011f1ca3e519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
更新时间:2016-12-03 15:08:18
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知二次函数
的图象与直线
有且仅有一个公共点,且不等式
的解集为
.
(1)求
的解析式;
(2)关于
的不等式
的解集中恰有两个整数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6280959e386eed67ce5d6f8da5dcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a92ba8b43bebdf7d6c40917f4d3e110.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7eef43dff87dad47d86373982edec5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知
.
(1)若f(x)在[0,2]上单调,求实数m的取值范围;
(2)若f(x)≤|mx-1|对x∈[0,4m]恒成立,求实数m的取值范围;
(3)若存在实数a,b,k满足f(a)=f(b)=k,且a<m<b.当m变化时,求a+b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1dd2f06e283ed09411ef76d9c46405.png)
(1)若f(x)在[0,2]上单调,求实数m的取值范围;
(2)若f(x)≤|mx-1|对x∈[0,4m]恒成立,求实数m的取值范围;
(3)若存在实数a,b,k满足f(a)=f(b)=k,且a<m<b.当m变化时,求a+b的取值范围.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知函数
(
)的两个零点分别为1和2.
(1)求
,
的值;
(2)令
,若函数
在
上有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59006947edd20afe58541ba9d23b34e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6e28dbfcdd6fb66b9ff759be044287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c420c42e8de1673bb2a5c9a6409d7737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
,
.
(1)
在定义域上是严格增函数,求实数a的取值范围;
(2)当
时,求函数
的值域;
(3)已知常数
,不等式
对任意
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c224293ff8bd74c4bfbc0faf6c66374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a981aa485843b0c1c197937a1400d026.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3939a88348b902cd6417c106ce8f279a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ecc70df44c7dae5330a2dcdb8a690cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b823aaf4eeeaf94427535085b8dd5d7.png)
(3)已知常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a40142c84be68ee2918c3a8303388c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bac4071b66db5286e489da94a5410cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272b6bd583160d4c3a5e58445daae1be.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐2】已知任意
,都有
.
(1)求实数
的取值范围;
(2)若(1)问中
的最大值为
,正数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695a704732adaf1557962407bca14c87.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)若(1)问中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73932db6f5b35b4b48e7cffae11ab12b.png)
您最近一年使用:0次