名校
1 . 已知函数
是
上的增函数,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad02c301ea9623462d229958a33a0623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-07更新
|
859次组卷
|
2卷引用:北京市东直门中学2023-2024学年高一上学期期中考试数学试卷
解题方法
2 . 已知二次函数
的图象过原点,满足
且最小值为
.
(1)求
的解析式;
(2)若函数
在区间
上单调,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3b657ebd1733b4f19dcbec44919924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55503c093ffb545056ba2a313f21b25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-03-02更新
|
153次组卷
|
2卷引用:北京市第十九中学2022-2023学年高一上学期(10月月考)期中练习(一)数学试题
23-24高一下·北京·开学考试
解题方法
3 . 若函数
在定义域内的某区间M上是增函数,且
在M上是减函数,则称函数
在M上是“弱增函数”,则下列说法正确的是_____
①若
,则存在区间M使
为“弱增函数”
②若
,则存在区间M使
为“弱增函数”
③若
,则
为R上的“弱增函数”
④若
在区间
上是“弱增函数”,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcefe4226775a51423e4447956ad2347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3fd09aa6bd2c73f713869a28e38e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1c02320bdeab69e3377ae393306992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355db975c6da8903a4a75ff5f23b92f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187d8df1f4c4673d12c1d0608534de23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
您最近一年使用:0次
解题方法
4 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
时,求函数
的单调区间;
(2)若函数在
内为增函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c23a181a8308c0215a09ef2925abb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da331b83b4d66da80cc3c4fdc38eabfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
23-24高一上·北京·期中
名校
解题方法
5 . 函数
在区间
上单调递增,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ccf5bbf8f34443cd13aeb03372b2c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知函数
是偶函数,当
时,
,若函数
在区间
上具有单调性,则实数a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910aabcef0ff657a3727d1246799274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ee51ca4b4d97e7eebce042864b6a72.png)
您最近一年使用:0次
2023-11-15更新
|
307次组卷
|
3卷引用:北京市第八中学2023-2024学年高一上学期期中练习数学试题
解题方法
7 . 已知定义域为R的函数
是奇函数.
(1)求实数a的值;
(2)用定义判断该函数在定义域R上的单调性
(3)若对任意的
,不等式
恒成立,求实数k的取值范围;
(4)设关于x的方程
有实数根,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a57b630d87c5cfb32adaa9c9988eed.png)
(1)求实数a的值;
(2)用定义判断该函数在定义域R上的单调性
(3)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c147912d6afbf3ec3d1576198bb2bc.png)
(4)设关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d55b5bf522c94b99543ea4afaefd3f.png)
您最近一年使用:0次
8 . 已知函数
,其中
.
(1)当
时,判断
的奇偶性并说明理由;
(2)当
时,判断
单调性并加以证明;
(3)若
为
上的增函数,求
的取值范围.(只写出结论)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5e9aaccb084ce4a68731529e0b1976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数
是定义在R上的偶函数,且当
时,
,现已画出函数
在y轴左侧的图象(如图所示),请根据图象解答下列问题.
(1)作出
时,函数
的图象,并写出函数
的增区间;
(2)用定义法证明函数
在
上单调递减.
(3)若函数
在区间
上具有单调性,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5397ee1eb6d157f6ec1e7a878f8d16e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/d92e384f-155f-419a-979f-8b1ec932f027.png?resizew=222)
(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c82644f77c5455ceb7f94950e94273.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55503c093ffb545056ba2a313f21b25e.png)
您最近一年使用:0次
2023-11-09更新
|
313次组卷
|
2卷引用:北京市人大附中石景山学校2023-2024学年高一上学期期中统练数学试题
解题方法
10 .
.①若
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.png)
__________ .②若
在
上单调递增,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdf6f290272a6059a001466c40dcb217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次