已知数列
满足:
,且
.求证:数列
是等比数列;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c2d19d6b259f57f4659e8643e02a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c044e907c418159ff0b98c5fea4dc748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
2023高三·全国·专题练习 查看更多[5]
(已下线)4.2 等比数列(精练)-【一隅三反】2023年高考数学一轮复习(基础版)(新高考地区专用)(已下线)4.3.1 等比数列的概念(精练)-【题型分类归纳】2022-2023学年高二数学同步讲与练(人教A版2019选择性必修第二册)(已下线)专题25 等比数列及其前n项和-1(已下线)4.3.1等比数列的概念与性质(3)1.3.1 等比数列及其通项公式(同步练习提高版)
更新时间:2022-06-30 21:38:52
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【知识点】 由递推关系证明等比数列
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解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】已知数列
,且
,
,
.
(1)证明:数列
是等比数列;
(2)求
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3369ae2337f8d6a049fd8e5a9f313f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c895d4ce5ce82ef9b311b9369b4de11.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
解题方法
【推荐2】已知数列
满足
,
.
(1)求证:
;
(2)求证:
;
(3)求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086e9b14c35ef3c57b20f5e952ebf9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4223bd6ee8f82d59d244371fbcddc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2bf37ed55ba1bf6d59ccee9da6b8ff.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0123c4a3d497952ac6a5d0a54a1866.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee96afbd98ac32680e63b0b599ae6b5a.png)
(3)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
您最近一年使用:0次