名校
解题方法
1 . 已知
是定义在R上的奇函数,且当
时,
.
(1)求函数
的解析式并判断
的单调性(不需要证明).
(2)当
时,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5663f3aa48ce7f7eb389ad2fdec340.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8a6dfc2370643ad5286b955d7d31fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a4e8aba8d89c2abf0a5a6e194d6b3f.png)
您最近一年使用:0次
2020-02-13更新
|
492次组卷
|
2卷引用:重庆市巴蜀中学2018-2019学年高一上学期期中数学试题
2 . 已知函数
(
且
).
(1)若
,求
的单调区间;
(2)若存在实数
及
,使得
在区间
上的值域为
,分别求
和
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb16ab4bf05e71c6420a74293ec341b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b70aeff7c01e637f9caac346798ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c81e363a5162f4574d7c311c63c223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-12-16更新
|
628次组卷
|
2卷引用:重庆市康德卷2018-2019学年高一上学期末数学试题
名校
3 . 设正实数
均不为
且
,则关于二次函数
,下列说法中不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7b6cec157bacc6c26ef1a385e32399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97ebaf5de959dc2930234854a6ec3e8.png)
A.三点![]() |
B.函数![]() |
C.![]() |
D.若![]() ![]() |
您最近一年使用:0次
2019-12-11更新
|
614次组卷
|
2卷引用:重庆市第八中学2018-2019学年高一上学期期末数学试题
名校
4 . 已知函数
的图象经过点
.
![](https://img.xkw.com/dksih/QBM/2019/12/3/2347213233537024/2348679018872832/STEM/b259fbdd-80c2-4e73-8622-4f313bc0d0d9.png)
(1)求函数
的表达式;
(2)如图所示,在函数
的图象上有三点
,其中
,求
面积
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59148ad7d6d3bea3618abae16303fea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d068ab64807644307cbdda59b49993bc.png)
![](https://img.xkw.com/dksih/QBM/2019/12/3/2347213233537024/2348679018872832/STEM/b259fbdd-80c2-4e73-8622-4f313bc0d0d9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)如图所示,在函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1bcc4dc67d50d6a01ec3307585ac9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b06387179d53c1e474fcfcb408b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2019-12-05更新
|
584次组卷
|
2卷引用:重庆市第八中学2018-2019学年高一上学期期末数学试题
名校
解题方法
5 . 给出定义:若
(其中
为整数),则
叫做离实数
最近的整数,记作
,在此基础上给出下列关于函数
的四个命题:① 函数
的定义域为
,值域为
;②函数
在
上是增函数;③函数
是周期函数,最小正周期为
;④函数
的图像关于直线
对称,其中正确命题的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b82ec65b678aef2b8ae9f2b143d0c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6b9b824412f889341ea7946b7ff3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f032039c63c97002cbc114d3ec1e7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28491f7ef64389d62b0e1574ab56429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fdf03192c9f565575d624af92f0845a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2010·重庆·一模
6 . 已知函数
,则方程
的解为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5ecbd2d85f35da68336ad4d0978fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfd74cb5d48ce187dd76de741a83745.png)
您最近一年使用:0次
解题方法
7 . 已知函数
满足以下条件:①定义在正实数集上;②
;③对任意实数
,都有
.
(1)求
的值;
(2)求证:对于任意
,都有
;
(3)若不等式
,对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a113ebf4dffd3c800e7630c781ce5525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01f8dd994ce67ad98e2ade7bf2af6a7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984e305b607175e95829be56810c5cde.png)
(2)求证:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd29ef32d9bc2e32ef2b8639b57dc9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40482d045ebf6dc6183188ef7649e48d.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090a37103b94f45367882a7ab7a1bd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30aeac062e28bbc1fd7d07c3c6091dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次