名校
1 . 设数列
的前
项的和为
,且
,若对于任意的
都有
恒成立,则实数
的取值范围是_________ .
![](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/d4ec44eee97d2a01c8f6d893ecc4207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369f74c5507823b636c8b155de0a8b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2017-08-19更新
|
1153次组卷
|
9卷引用:2015届江苏省扬州市高三上学期期末理科数学试卷
2015届江苏省扬州市高三上学期期末理科数学试卷2015届江苏省扬州市高三上学期期末文科数学试卷(已下线)2015届江苏省扬州市高三上学期期末理科数学试卷江苏省南京市秦淮中学2017-2018高一下学期期末考试数学模拟试题江苏省南京师范大学附属中学2017届高三高考模拟一数学试题(已下线)黄金30题系列 高三年级数学江苏版 小题好拿分【提升版】(已下线)《2018届优等生百日闯关系列》【江苏版】专题一 第六关 以数列为背景的填空题(已下线)专题6.1 数列的概念与简单表示法(练)-江苏版《2020年高考一轮复习讲练测》(已下线)专题6.5 数列的综合问题(练)-江苏版《2020年高考一轮复习讲练测》
名校
2 . 已知数列
的前
项和为
,对任意
满足
,且
,数列
满足
,
,其前9项和为63.
(1)求数列
和
的通项公式;
(2)令
,数列
的前
项和为
,若存在正整数
,有
,求实数
的取值范围;
(3)将数列
,
的项按照“当
为奇数时,
放在前面;当
为偶数时,
放在前面”的要求进行“交叉排列”,得到一个新的数列:
…,求这个新数列的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2eac93862c1920d52a1b275ce0cd23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7635692105feb1eaffdea10155e20771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a1296484150c082ac7ec72e82a8be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d9bd40057948c5e3eb23064a673284.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323dcff134d062e43b210c71ab6c6232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0c47c503aa56b60f55c015b2e68fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)将数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d47e7bf7c7e14b1e5685661d5f4ada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2016-12-13更新
|
776次组卷
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4卷引用:江苏省无锡市锡山区天一中学2019年高一期末数学试题
江苏省无锡市锡山区天一中学2019年高一期末数学试题江苏省天一中学2018-2019学年高一下学期期末考试数学试题2017届江苏苏州市高三期中调研数学试卷(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第五关 以子数列或生成数列为背景的解答题