名校
1 . 已知等差数列
的公差d大于0,且满足
,
.数列
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17a247427fce812293328a089457c03.png)
.
(1)求数列
,
的通项公式;
(2)设
,求
取得最大值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f5f3cf1a6b833876d99527f41c8107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0997f872e498cb3db3198a824d694c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17a247427fce812293328a089457c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f4af9b6fb8da12989e3d6c8c3e15b8.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703a0fbc6e6abb249602e099dcad414f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2020-10-27更新
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408次组卷
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2卷引用:四川省雅安市雨城区雅安中学2020-2021学年高一下学期4月月考数学试题