名校
1 . 仔细阅读下面三个函数性质:
(
)对任意实数
,存在常数
,使得
.
(
)对任意实数
,存在常数
,使得
.
(
)对任意实数
,存在常数,使得
.
请写出能同时满足以上三个性质的函数(不能为常函数)的解析式__________ .(写出一个即可)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c171d0021b15415b055c223935a2292.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156d0e8f3176584a06f774a7a15c99ac.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357f35cfcdc9cc8f655290cebaa90bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a1c02c533c60949a994212c90fbeda.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a0ad869e385be373c7037214397b9e.png)
请写出能同时满足以上三个性质的函数(不能为常函数)的解析式
您最近一年使用:0次
2 . 已知向量
,向量
,(其中
,
,
,
).定义:
.
①若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5551fb0492bc25596cabb007fe565389.png)
__________ ;②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7481aca88fa2c15f6f9162080b37f0d2.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a990fff176ad776384e5c73687bf22e6.png)
__________ (写出一组满足此条件的
和
即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42fecd8495150d3bed02f3981827939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a941d0be7b4de9fae9c0b6fa1379da2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1c303cebf30c5dbb53dbcdd202a3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747a5e90959a4019e6d057599ddfdedb.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788fa471d53a8be8dd55f561aecbf99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783c4278864f850dc5b59d073a692f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5551fb0492bc25596cabb007fe565389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e8343408ada454640fc229dfae1315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7481aca88fa2c15f6f9162080b37f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a990fff176ad776384e5c73687bf22e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
3 . 已知平面向量
,平面向量
,(其中
).
定义:
.若
,
,则
=_____________ ;
若
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
__________ (写出一组满足此条件的
和
即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42fecd8495150d3bed02f3981827939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a941d0be7b4de9fae9c0b6fa1379da2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6cf7cc0b0645eac4f258cfa4cde172.png)
定义:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747a5e90959a4019e6d057599ddfdedb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788fa471d53a8be8dd55f561aecbf99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783c4278864f850dc5b59d073a692f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766d2289251ed3e8721ab452f52eda39.png)
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e8343408ada454640fc229dfae1315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780826cfd4f1f53a124e1c9cd12a13c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791f36f1f9e630e3bf64cffc76302428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
名校
4 . 已知函数
,其中
表示不超过实数x的最大整数,关于
有下述四个结论:
①
的一个周期是
;
②
是偶函数;
③
的最大值大于
;
④
在
单调递减.
其中所有正确结论的编号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809c5d1ebe6b452c777d28e8cf22ea28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e2d7c958e99bcd9d7f251c19ee3544.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
其中所有正确结论的编号是( )
A.①② | B.①③ | C.①④ | D.②④ |
您最近一年使用:0次
2021-01-21更新
|
246次组卷
|
2卷引用:北京市东城区汇文中学2021届高三下学期开学考试数学试题