已知直线
是曲线
的一条切线,若函数
,满足
对任意的
恒成立,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b74381f68eb1e33d412a7a3d62313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d7f111788e4212dca5926e7f4fc221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d9424599ed400cda2e97d8b44a003e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ec397542f73c297aa51646ddcf4967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
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更新时间:2018-01-10 08:44:32
|
【知识点】 函数奇偶性的应用
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单选题
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适中
(0.65)
解题方法
【推荐1】已知函数
是以5为周期的奇函数,若
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7fa44c124c28efec8eeae9a43200e00.png)
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A.4 | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】已知
是定义在
上的偶函数,且在区间
上单调递增.若实数
满足
,则
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/ad2edd8edcb21bd41584daf9bb95a5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c402e91f65ce6b23028224e7a46acc9a.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
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适中
(0.65)
名校
解题方法
【推荐3】已知函数
,设
,
,
,则a,b,c的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f959110f8461659466d535acea649a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b350401bfbce75b22ced7780effdde3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e53d924b58f7c436fb866608baaa3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b14edc08da6c33586d62434ccec1ac5.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次