1 . 已知数列
满足对
,都有
成立,
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
,记
,则数列
的前
项和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec65994fe5ad5bff825f81a89808bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a60e4d496c4fcca014ddf4303fc5cbdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca491225657ceb86687a49d25542c624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42ff6315dbfcac4fdf152a2e8dccbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc135b07188a5c3895fbff407c4d21d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1165edc23b5782b5942ef7e79130bb94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5453184e251cfe787b5965cd38426962.png)
您最近一年使用:0次
2019-06-07更新
|
667次组卷
|
4卷引用:江西省新余一中、樟树中学等六校2019-2020学年高一下学期第二次联考数学(文,创新班)试题
名校
2 . 已知数列
的前
项和为
,且数列
是首项为3,公差为2的等差数列,若
,数列
的前
项和为
,则使得
成立的
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dea1dd4ffcb4cf0697ca43079f6a1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14eedc2934191808096c1808ca29f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbabc4c8b8b6e2e53a9e13b8db92172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2018-08-29更新
|
2523次组卷
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5卷引用:江西省南昌市2017-2018学年度高三第二轮复习测试卷文科数学(三)