名校
解题方法
1 . 已知函数
,
,若
,
,使得
,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a80358d1ddd77f7a5e31e0f89fba77df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62039e14709e5528a6ee3cb726f4228c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bb7bb34b5f4d32fc07b47752fa171d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418160160c0d03978ce156022cd7e428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3bb43da17137e6c50874a8086df278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-06-15更新
|
489次组卷
|
3卷引用:河南省新乡市长垣市第一中学2023-2024学年高一上学期11月教学质量检测数学试题
河南省新乡市长垣市第一中学2023-2024学年高一上学期11月教学质量检测数学试题甘肃省庆阳市环县第四中学2023-2024学年高一上学期期末考试数学试题(已下线)专题09 指数函数与对数函数的综合(一题多变)
解题方法
2 . 定义在正实数集上的函数
满足下列条件:
①存在常数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
,使得
;②对任意实数
,当
时,恒有
.
(1)求证:对于任意正实数
、
,
;
(2)证明:
在
上是单调减函数;
(3)若不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①存在常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3855a4c053b11330f1d98affcea7df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb04d514baf56eec084671b88898770b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67cff059e78d45b51400779ef4f9a888.png)
(1)求证:对于任意正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6521ef75f0a05fe62cdfd2fbbe0430b6.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca3811dafef1b3c18d715f50d7d34b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 某城市的一位工艺品售卖者,通过对每天销售情况的调查发现:该工艺品在过去的一个月内(以30天计),
每件的销售价格
)(单位:元)与时间
(单位:天)的函数关系近似满足
(
为常数,且
),日销售量
(单位:件)与时间
(单位:天)的部分数据如下表所示:
已知第10天的日销售收入为505元.
(1)给出以下四个函数模型:①
;②
;③
;④
.请你根据上表中的数据,从中选择你认为最合适的一种函数模型来描述日销售量
与时间
的变化关系,并求出该函数的解析式;
(2)设该工艺品的日销售收入为
(单位:元),求
的最小值.
每件的销售价格
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13da00eed4b9f1d4450456b310de1a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b4e615b9f184a45070b6c00d42245c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a22c453d9041febde25582b463e642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![]() | 10 | 15 | 20 | 25 | 30 |
![]() | 50 | 55 | 60 | 55 | 50 |
(1)给出以下四个函数模型:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfe6b3b070f6ae5e4a87557181a3d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fb3f6a657ec26842bbb83b8e384e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f821503e673d57695aef7d6ee1eb3341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31c388df1de313901248f14d5c68139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a22c453d9041febde25582b463e642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)设该工艺品的日销售收入为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解题方法
4 . 若函数
有最小值,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0662960ce3047e33fe7bf2ffd35b5b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
5 . 已知函数
(
且
)为奇函数.
(1)求函数
的定义域及解析式;
(2)若
,函数
的最大值比最小值大2,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ea9fe0a6678af683f03fcef5e60a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679c9edadb198dae2983e88f9ee58beb.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
2024-03-03更新
|
232次组卷
|
3卷引用:河南省豫东四校2022-2023学年高一下学期第一次联考(1月)数学试卷
解题方法
6 . 已知函数
是定义在
上的奇函数,且任意实数
满足
,当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5215a578933ba72022450a6d3a37d14.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba88ee768f02214a4b085f396aecbd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6e80db7f2d705016809640d5c30dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d2c1ac861aad057fbe7734cae19f1b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5215a578933ba72022450a6d3a37d14.png)
您最近一年使用:0次
7 . 已知定义在
上的偶函数
和奇函数
,对于任意的
,
恒成立,若函数
有且仅有两个零点,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cf49dc3f4a7c81ed54314117a808ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8cbc83b1961662bbc65cd86e60a0e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 已知幂函数
为偶函数,且
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602d78280342a6d693ca5b416f40d09e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f080c711f80caf9ff71ab932062088a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d222409bdf7c9f3c57f6a52d0fb6ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9dab9bb70da7903c33c063115cf249d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知
是定义在
上的奇函数,对任意的实数
,
恒成立;当
时,
,若对于任意
,都有
恒成立,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63bb0cb91f7e3f5989927b293a7b7bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8370082a6d905a23c7391383c76cd81e.png)
A.若![]() ![]() | B.若![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
10 . 函数
的图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962be2bfd14b3df9c02366f660b1baed.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次