已知函数
,若有
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e179eb520f2ee0be4c411a3ffb8e655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7d7884bcfde992e65f3b974b867748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-12-14 17:10:03
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相似题推荐
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【推荐1】已知R上的偶函数
在区间
上单调递增,且恒有
成立,给出下列判断:①
;②
在
上是增函数;③
的图象关与直线
对称;④函数
在
处取得最小值;⑤函数
没有最大值,其中判断正确的序号是______ .
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【推荐2】下列叙述正确的序号是________ (把你认为是正确的序号都填上).
①定义在
上的函数
,在区间
上是单调增函数,在区间
上也是单调增函数,则函数
在
上是单调增函数;
②已知函数的解析式为
=
,它的值域为
,那么这样的函数有9个;
③若函数
=
在
上单调递增,则
;
④已知
的定义域为
,且满足对任意
,有
,则
为偶函数.
①定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be71c309001092d6c1283d481dc9c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942b22a981d50e2c0ccb0f3f778c226a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
②已知函数的解析式为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d215e8b9a565024fc6ef1a3c7a4675e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a462ac43d85e05d71b7e5d128b1bb8ba.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b3fb4a7ac4fa9925a3f26e45c34a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799d30fdf585f21c4307c4fda83cf174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7939ce832162475d0bb9cf6c8de164.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000de7f15453b5dd97cad50eb2175547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9983e6e9091d1d655e3cc209d4cf05d.png)
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您最近一年使用:0次
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名校
解题方法
【推荐1】已知函数
的定义域为R,
为偶函数,
为奇函数,且当
时,
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83869f0f9b60268511b1e643683f4b66.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e465bd350ceacd10ad0a2de83fc6c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafb56898192415349f6dbc20ff1f502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207717d14e7d941837b2613fec7694e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83869f0f9b60268511b1e643683f4b66.png)
您最近一年使用:0次
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(0.4)
【推荐2】已知函数
是定义在
上的偶函数,且当
时,
,其中
为常数.若函数
有10个零点,则
的取值范围是_______ .
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您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
【推荐3】已知偶函数
在区间
上单调递增,且满足
,给出下列判断:
;
在
上是增函数;
的图象关与直线
对称;
函数
在
处取得最小值;
函数
没有最大值,其中判断正确的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724f1face977df2f57d4004e68d92b6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
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您最近一年使用:0次
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解题方法
【推荐1】已知
是定义在
上的函数,且
,若对任意
,不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7123c6cfb2e8f808ce82a366015c1fb5.png)
恒成立,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
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您最近一年使用:0次
填空题-单空题
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较难
(0.4)
名校
解题方法
【推荐2】当
时,
恒成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
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您最近一年使用:0次