已知–3≤log
x≤–
,求函数f(x)=log2
log2
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953ec518ca94baabf5cced59778c35a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee9878f3a0e16f2ed03c44b7bb1e02.png)
16-17高一上·山西朔州·期中 查看更多[3]
2016-2017学年山西右玉一中高一上期中数学试卷(已下线)2018年10月27日 《每日一题》 人教必修1 (上学期期中复习)周末培优人教A版(2019) 必修第一册 突围者 第四章 第四节 对数函数
更新时间:2018-10-24 18:36:15
|
【知识点】 与二次函数相关的复合函数问题
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知函数
,
.
(1)当
时,
在
上为单调函数,求
的取值范围;
(2)求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2338ba66e01170911446f6f0eb5b18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea68078761468f2310510e11408d099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】已知二次函数
满足
(
),且
.
(1)求
的解析式;
(2)若关于
的方程
在区间
上有唯一实数根,求实数
的取值范围(注:相等的实数根算一个).
(3)函数
,试问是否存在实数
,使得对任意
,
都有
成立,若存在,求出实数
的取值范围,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c811aac7882ab358d59ee0ee49a029d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c9a7ed0961f8977a21dab37aab396.png)
(1)求
![](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/c269b5fc40b6985e1aad2be09d29c6fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599e13f74bcd5268afea7a6c0928403a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7792b5cd171fcf307992254c8202e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756f2cef86c1e3cfa8d5aa09717e4290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85262fdbbf6fb2557813b886884a6628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次