1 . 已知数列
(其中第一项是
,接下来的
项是
,再接下来的
项是
,依此类推)的前
项和为
,下列判断:
①
是
的第
项;②存在常数
,使得
恒成立;③
;④满足不等式
的正整数
的最小值是
.
其中正确的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1397acaef5de0c0da2bcb9f548eadcf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8531146889fd0d4ac3df6837ae97a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c87bad7c80c2dd90eb8c9c77e1ce726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423fce1c50758edabd96e08b73bc0213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9214ebbecada038d0348a159c8a025b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5eaf76852d730accc1f33a1a05a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5692dc8fe7845e00220e4637c4223e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58fc653fba9f8f50588bc4356a68dff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a988161a561d02647863c3e08a77e475.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ccff46f69f3ed40efe76d479f889cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b525f9caf23d4a53b56dce2f1778b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ad22033d5246c0fd3c3541581ca473.png)
其中正确的序号是
A.①③ | B.①④ | C.①③④ | D.②③④ |
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2019-07-13更新
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1266次组卷
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3卷引用:江西省上高二中2018-2019学年高二下学期期末数学(理)试题