1 . 设函数
若
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9fe92b88e4133fc6b3a791a1c172ddc.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614535680/STEM/cbc80ccbdac34ecf998b6b3f7bb0fb74.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572523608924160/1572523614535680/STEM/b2583de6fa734cb8b5ffb7e9acb1815d.png)
A.![]() | B.![]() ![]() | C.![]() | D.不存在 |
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2 . 设
则
的值为
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572520543559680/1572520549400576/STEM/ec4d1009ce5b44649d43e9fc4b269414.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572520543559680/1572520549400576/STEM/56c78bc01f8c4ef7aa39c1b2b9c57a96.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知f(x)是奇函数,g(x)是偶函数,且
,
,则g(1)等于
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572505075499008/1572505081389056/STEM/c3e03e76fcf741ddb7dcb93a61d75fdd.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572505075499008/1572505081389056/STEM/30f2da46efc74e1c8f16ea1536a0a945.png)
A.4 | B.3 | C.2 | D.1 |
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4 . 【选修4-5:不等式选讲】
设对于任意实数x,不等式
恒成立.
(Ⅰ)求m的取值范围;
(Ⅱ)当m取最大值时,解关于x的不等式:
.
设对于任意实数x,不等式
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572505075499008/1572505081937920/STEM/b39e0f72ecd648e38c8795cadb77e80b.png)
(Ⅰ)求m的取值范围;
(Ⅱ)当m取最大值时,解关于x的不等式:
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572505075499008/1572505081937920/STEM/a4f8a44b63864e6ca0e20d1d3e6df1fc.png)
您最近一年使用:0次
2016-12-04更新
|
237次组卷
|
2卷引用:2016届贵州省贵阳市一中高三第四次月考理科数学试卷
解题方法
5 . 对一定义域为D的函数
和常数c,若对任意正实数
,
使得
恒成立,则称函数
为“敛c函数”,现给出如下函数:
①
;②
;③
;④
.
其中为“敛1函数”的有________ (写序号)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/d29ae0c6fc5943b4ba2b17d7b41f1d86.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/fe18d49c66aa44e18b0cb61036812224.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/5fc6e58eb2064cb58c48670c8110ad45.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/a0d5af8290f349e19c096e0b92be8e3a.png?resizew=109)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/d29ae0c6fc5943b4ba2b17d7b41f1d86.png?resizew=61)
①
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/1812075b41ef4805a15bb1faf3257d4d.png?resizew=105)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/818f103813bd43fe8ca6ae9397bf9ae2.png?resizew=145)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/d0b138ffaf82447b957515ffe2399f5d.png?resizew=89)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852414464/STEM/b2f1b77f77b84e8bbbf6aba2210eae61.png?resizew=81)
其中为“敛1函数”的有
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解题方法
6 . 已知函数
的图象如图所示,则函数
的单调减区间为
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852127744/STEM/4bb387c9467b4a4b9692eccc20b0ca6b.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852127744/STEM/1c49333784dc4e03b53e160952b13bc6.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852127744/STEM/d82cb6e3e3b44f168257d7d3d2f3edfe.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852127744/STEM/4bb387c9467b4a4b9692eccc20b0ca6b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 设偶函数f(x)对任意
,都有
,且当
时,
,则![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852070400/STEM/335aa17ddeb445c0911434b65bc7fa9d.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852070400/STEM/1f0a5c6d413e4b9c941bbaff1ddb42b3.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852070400/STEM/1a9bb7be40bc4ee087349ee7cbe4cba9.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852070400/STEM/8653ce3ff1d840059df48ffa459536d2.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852070400/STEM/87c9449ef6d14e6f81dc64b3a51fa0c4.png)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1572504846286848/1572504852070400/STEM/335aa17ddeb445c0911434b65bc7fa9d.png)
A.10 | B.![]() | C.-10 | D.![]() |
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8 . 若函数
在定义域内是增函数,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7e61ff8979c0ca1f91fce762fbe7e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
9 . 设函数
,则使得
成立的
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a9e991dc4de5d4cabdf0413dd16079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b80c3249f60481548778c46d4d5f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 设
是定义在
上的偶函数,对于任意的
,有
,且当
时,
,若在区间
内关于
的方程
恰有3个不同的实数解,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0be07495dbc744e1ecabac66f748218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317a22a2adb099aed351ac353ab65157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42dab692b19cabea84301710b6a172fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8867fae2a8fba3fa5faf6117913f3be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd29f719475580e421120efc2d0b2d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8237c5382cf866caff2df8971f93fa51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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