1 . 已知
表示大于
的最小整数,例如
,
,下列命题中正确的是
①函数
的值域是
;
②若
是等差数列,则
也是等差数列;
③若
是等比数列,则
也是等比数列;
④若
,则方程
有2013个根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728509d4c7d8a305afb7ec4580075109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e111d49c07215cf086bac317abe2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd336f5ed9e319b1dadc3f52354cd901.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2405c0d3262a1ce093f8579ee15101e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407fe5a5a782b4e3d2f55cee8fb50bde.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407fe5a5a782b4e3d2f55cee8fb50bde.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c358ba2210110308f09ae0169be3261d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8f9a21ad7a8c68adfe701db0a6c85e.png)
A.②④ | B.③④ | C.①③ | D.①④ |
您最近一年使用:0次
2017-04-14更新
|
736次组卷
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4卷引用:2016-2017学年黑龙江省大庆第一中学高一下学期第二次月考数学试卷2
2 . 设各项均为正数的等比数列
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c976b292b60b9d4fe9038de4706c136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f6000421c5370e4b89f23be199f388.png)
(1)求数列
的通项公式;
(2)若
,求证:
;
(3)是否存在正整数
,使得
对任意正整数
均成立?若存在,求出
的最大值,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c976b292b60b9d4fe9038de4706c136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f6000421c5370e4b89f23be199f388.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbebaac00a374da6197b76e0bc3e5a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f68fd890ea6590ba9c35021df58fc3.png)
(3)是否存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b705485fdb610af0ba19545d2dbdff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-03更新
|
3094次组卷
|
3卷引用:【全国百强校】黑龙江省大庆实验中学2017-2018学年高一下学期期中考试数学(文)试题