1 . 下列函数是减函数的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb776c7befc23e570377ac1a8cd67e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知函数
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0229f8cef760198b1f10b45f3be87b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
A.![]() | B.2 | C.4 | D.21 |
您最近一年使用:0次
解题方法
4 . 函数
的定义域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9ef2b786b74833619d9524acdc2acb.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知幂函数
在
上是增函数,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c2643ea27d7dbfa921c86633a8cdba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.1或![]() | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知函数
.
(1)求实数
的值,并确定
的解析式;
(2)试用定义证明
在
内单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c837fcf0a2f18221e8497a7fa488c0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)试用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4a226feca9d9095b0f68191245ed22.png)
您最近一年使用:0次
7 . 已知集合
.若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35c2f09cf6a24add988de90444157de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
8 . 已知函数
在区间
上有最大值3和最小值
.
(1)求实数
的值;
(2)设函数
,若不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b028df48942ef65a079e577cba96fdce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85564659d145e38c0887d186db1c8573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cda097a4e7c41100e573d8304ee066.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc6247925dafa8621e543d420cd94d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449556b09b023f535c37fc896df73585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f31157ec350fe6b3156b4f6868d19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数
且
是定义在
上的偶函数,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8049837b581eea57526eee3a072433f6.png)
(1)求
的解析式;
(2)判断函数
在
上的单调性,无需证明;
(3)对于任意
,存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5ccda8a393ea6b3f4896e911628d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8049837b581eea57526eee3a072433f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
(3)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f9d255ca420fa2486b11fcb7763b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c5d88111cd104809232b485a3a849f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4340dc9ab24ed21ac89b17c53c7491d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-11-26更新
|
626次组卷
|
3卷引用:山西省运城市2021-2022学年高一上学期11月期中检测数学试题
名校
解题方法
10 . 已知
是定义在
上的奇函数,且
时,
,若对于任意的
,不等式
恒成立,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea58dd37d47eb54a753b2a60ddc3b3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9564a20c1081d01e2c1febb103046b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7991fc240122b87af86a8bf86854083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2021-11-26更新
|
304次组卷
|
2卷引用:山西省运城市2021-2022学年高一上学期11月期中检测数学试题