已知函数
是定义在R上的可导函数,其导函数为
.若
,且
,则使不等式
成立的x的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0326c62efc8d1dec3b8b9be3acb14c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94a4ce9e0340e515dcc4e17bcde1283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709659afdb17a1af3b8364ed32fbb2a3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-04-30 16:15:37
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】设函数
的定义域为
,若存在闭区间
,使得函数
满足:①
在
上是单调函数;②
在
上的值域是
,则称区间
是函数
的“和谐区间”.下列结论错误 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0195f699765021e2c6ea985e487971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f0dbc7a1166bd79a9b52d3c59e6a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.函数![]() |
B.函数![]() |
C.函数![]() |
D.函数![]() ![]() ![]() |
您最近一年使用:0次
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解题方法
【推荐2】下列函数中,在区间
上单调递增的有
①
;②
;③
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4f5252fb557a86de3cbcee97754e8f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c8253742a6c3cf6257a51308183caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54976cd44dd4ff2f6896916646c258c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58675c332434cf5da5c5c8a39e81fddb.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
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(0.65)
名校
【推荐3】已知定义在
上的可导函数
,对任意的实数
,都有
,且当
时,
恒成立,若不等式
恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d7c40c76bf86abc4d954e0446eed6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3348374d7852d5836b316e58716b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d2a30b99ec1451667d970d242ca8b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
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解题方法
【推荐1】已知函数
,则关于x的不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2738b0b5bc554cef81086cd7ed5a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e87fd82293b0cd2fb8ac75da097f50d4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】若定义在
上的奇函数
在区间
上单调递增,且
,则满足
的
的取值范围为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceb969de98e32f56f9610c213823489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fb72849119f0f4d5de954bf25ce011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐3】函数
是定义在
上的偶函数,且在
上是增函数,若
,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/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e5b0569b8a7bf1339a2fce8a43c831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次