名校
解题方法
1 . 已知函数
.
(1)当
时,试判断
单调性并加以证明.
(2)若存在
,使得
成立,求实数m的取值范围.
(提示:
(其中
且
))
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad91e04a5faf7bc002d8bd42cd4a734.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942d8cdf0e9dbdb188f8d0fb7ffe9be3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5dea64f8a184b3663dc740683c64fa7.png)
(提示:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70bca22138a8c8f143f6d68e08b3274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
您最近一年使用:0次
2023-02-14更新
|
316次组卷
|
2卷引用:福建省莆田第五中学2022-2023学年高一上学期期末考试数学试题
解题方法
2 . 已知函数
是奇函数.(e是自然对数的底)
(1)求实数k的值;
(2)若
时,关于x的不等式
恒成立,求实数m的取值范围;
(3)设
,对任意实数
,若以a,b,c为长度的线段可以构成三角形时,均有以
,
,
为长度的线段也能构成三角形,求实数n的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee160c5d65f28ee38820b3aad998981.png)
(1)求实数k的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375f8f03f9e6e475ac0e565e6c89ec73.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a245b1e361d8f9c592952e32625415c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b4e45fbe4c5c2d552aecb9367fd67b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812b1efe6b4a2c6cdabfaf0d903bfecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c22ca432bb45b793a18b6bc8b00effe.png)
您最近一年使用:0次
2023-02-14更新
|
1258次组卷
|
5卷引用:山东省济南市2022-2023学年高一上学期期末数学试题
3 . 空旷的田野上,两根电线杆之间的电线都有相似的曲线形态.事实上,这些曲线在数学上常常被称为悬链线.悬链线的相关理论在工程、航海、光学等方面有广泛的应用.在恰当的坐标系中,这类函数的表达式可以为
(其中a,b是非零常数,无理数e=2.71828…),如果
为奇函数,且对
时,
为真命题,则a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49757d6d62b9c313b11aafd537475845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94d8b81cf737faa202a361ce23564de.png)
您最近一年使用:0次
名校
4 . 若函数f(x)满足:对于任意正数s,t,都有
,
,且
,则称函数f(x)为“L函数”.
(1)试判断函数
是否是“L函数”,并说明理由;
(2)若函数
为“L函数”,求实数a的取值范围;
(3)若函数f(x)为“L函数”,且
,求证:对任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4028ed0e84791a6da036d71af685b63d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afc7ce5b1f3ac621c3bc08b4e243278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17dfefdc8541c51ae463de8b36086374.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7c91c7cad8a060981951c082cb9291.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51152b488b3ea76753521a706d732f05.png)
(3)若函数f(x)为“L函数”,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d308166f6bc3d51033cc7a72c71f28a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430beb98ec01049d47803b98979d7175.png)
您最近一年使用:0次
名校
解题方法
5 . 已知
,当
时,
的单调减区间为__________ ;若
存在最小值,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faf034a15c3626ce398f644517c47bc.png)
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-01-05更新
|
1016次组卷
|
2卷引用:北京市海淀区2022-2023学年高一上学期期末数学试题
名校
6 . 已知函数
.
(1)若
,求x的值;
(2)
对于
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c169ef7a319cb7bda4d7e84fcbc1c21.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1a4f3d0f4f608ea4e8481843d19429.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c796cc3595c5169b291d60dfc27c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f42f569745715212da32c78b7d2f8baa.png)
您最近一年使用:0次
7 . 已知函数
的定义域为
,且
.
(1)求
,判断并证明其单调性;
(2)求方程
的根;
(3)若不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c854974f35b0fd1b72b3392ffbdf270d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca55564c8f5c15575365e0a7bf83e10.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0454855f1e7d1863afca27a3bf64d895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
8 . 已知函数
的定义域为
,图象过点
.
(1)求
的值域;
(2)是否存在实数m,使得
恒成立?若存在,求出m的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b043fcf34272297ad32d0efc7e083b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f239054a466e83fb491cae03760ef126.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在实数m,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0195a79357b31be5e7d1f4db6f466740.png)
您最近一年使用:0次
9 . 设a为实数,若关于x的方程
有实数解,则a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e25efff932ded57a3ba66160654b35f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4184196c1f0f6626881d3eb2afb70a5c.png)
(1)若
是奇函数,求
的值;
(2)若
在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4184196c1f0f6626881d3eb2afb70a5c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-10-28更新
|
1623次组卷
|
8卷引用:浙江省宁波市三锋教研联盟2021-2022学年高一上学期期中联考数学试题