1 . 已知函数
.
(1)当
时,试判断
在
上的单调性,并用定义证明.
(2)设
,若
,
,求n的取值范围(结果用m表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c2e44d86d56a642270024c2d28de26.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d3cf4e55ea58b97955756b5ff997e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45629401c958d19cede8cba3d20ab2b5.png)
您最近一年使用:0次
解题方法
2 . 已知函数
(
).
(1)若
在
上是单调递减函数,求
的取值范围;
(2)若
在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887e0a6a6b469c26fd14272ffa9ae0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fb5a6f579676f2ef8c6b1ddcde04d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
3 . 设
是定义在[m,n](
)上的函数,若存在
,使得
在区间
上是严格增函数,且在区间
上是严格减函数,则称
为“含峰函数”,
称为峰点,[m,n]称为含峰区间.
(1)试判断
是否为[0,6]上的“含峰函数”?若是,指出峰点;若不是,请说明理由;
(2)若
(
,a、b、
)是定义在[m,3]上峰点为2的“含峰函数”,且值域为[0,4],求a的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed085cc685f0bf1b3df2ed16e04ccea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ce5a043dadae2543085520a3599446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3597a8adb1fd3915939f396d462b3f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab2fe78d4cfc053b67dc299929d7ca9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686b332872c51b433befe65fbe773380.png)
您最近一年使用:0次
2023-12-23更新
|
108次组卷
|
2卷引用:江苏省盐城市大丰区南阳中学2023-2024学年高一上学期期中数学试题
名校
4 . 已知函数
.
(1)若对任意
,都有
,则
的解析式;
(2)若函数在区间
上不单调,求实数
的取值范围;
(3)若
,求
的最小值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966744658a327445845ae76dc3f02e00.png)
(1)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aeeb9b81e3c6a0d36add7093b657832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82a1224e47f31ecdfffd328d5a3ab6d.png)
您最近一年使用:0次
2023-12-20更新
|
330次组卷
|
2卷引用:北京市第十二中学2023-2024学年高一上学期期中考试数学试卷
23-24高一上·上海·期中
名校
解题方法
5 . 已知函数
,其中
是实数.
(1)
在区间
上的最大值记为
,求
的表达式;
(2)
在区间
上的最小值记为
,求
的表达式;
(3)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a2d7c67748749a033294d20ec56360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760f804646698060703c5458ff5637c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760f804646698060703c5458ff5637c7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a675b062ab139d92504d1b9d8667f12e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a675b062ab139d92504d1b9d8667f12e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4536a65e688ab96ef28f010ef6ea0e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
是定义在
上的奇函数.
(1)求实数
的值;
(2)若存在
,不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463c4d4188dad9576f2b787195f1e908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5d01bb22f4705b80754aa342497b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
名校
7 . 已知二次函数
的最小值为
.
(1)若
,求
的值;
(2)设关于
的方程
的两个根分别为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0abfd04f8105daef57bf83758c4ae3d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0268e85df43d66b031e0eccb11284452.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8fc9f587b7fdb668e3c855da1b8282e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
您最近一年使用:0次
解题方法
8 . 已知函数
,
,
(1)若
,
成立,求
的取值范围;
(2)若对
,总
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eca0b64bb0fbfbcf6bcc2926f401aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1940c6adb2ce032a8938832ea5602025.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdf03349ba67e128c8bc9c2ac801eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bb7bb34b5f4d32fc07b47752fa171d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7409b8e4b38636929d90f0ac54b2ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4624a648f30189a10c8b6683b190ce5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
9 . 已知函数
.
(1)若函数
在区间
上单调递减,求实数
的取值范围;
(2)当
时,求
在区间
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc986101eea4e453608753c6f4273cb9.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8682c07954e4ba88e5766b1e005f03.png)
您最近一年使用:0次
名校
10 . 已知关于
的函数
.
(1)当
时,求不等式
的解集;
(2)若
对任意的
恒成立,求实数
的取值范围;
(3)二次函数
在区间
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27145091523fc17def346f0e03fdd35d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b624d88827e92e12bc0a8f1067cbe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9037e589742d44dea35b511f5462bbac.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9037e589742d44dea35b511f5462bbac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27145091523fc17def346f0e03fdd35d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次