已知等差数列
满足
,
.数列
的前n项和
满足
.
(1)求数列
和
的通项公式;
(2)对于集合A,B,定义集合
且
.设数列
和
中的所有项分别构成集合A,B,将集合
的所有元素按从小到大依次排列构成一个新数列
,求数列
的前50项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c840a1dc0ac38f73c45001b411df7908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e1accc55a0fb348ec71543f1a32d1f.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)对于集合A,B,定义集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84582278bd9b768e120d43099c98d458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b998f1e3675e0fa3b790c416a751af63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34a901aa78366ac960f5f4e7f1fcbac.png)
2023·重庆九龙坡·二模 查看更多[4]
重庆市九龙坡区2023届高三二模数学试题(已下线)模块六 专题8 易错题目重组卷(重庆卷)吉林省白山市抚松县第一中学2023届高三第十次模拟预测数学试题福建省“宁化、永安、尤溪、大田、沙县一中”五校协作2024届高三上学期11月联考数学试题
更新时间:2023-04-14 13:52:24
|
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条件:①
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;②
,
;③
,
.
注:选择多个条件分别作答,以第一个条件解答计分.
(1)求数列
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(2)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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条件:①
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c705ed1d40eb3d40ebadd05dbb645b73.png)
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注:选择多个条件分别作答,以第一个条件解答计分.
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
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【推荐2】已知公差不为0的等差数列
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【推荐1】已知等比数列
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【推荐2】已知数列
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【推荐1】已知数列
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【推荐2】已知数列
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【推荐2】已知公比大于1的等比数列
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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