若数列{an}满足关系a1=3,an+1=2an+3,求数列的通项公式.
更新时间:2018-03-11 12:12:42
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【知识点】 由递推关系式求通项公式
相似题推荐
【推荐1】若数列
中,
且
(
),求它的通项公式
![](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/27ac2f395c3c582bd04be6aadf451ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
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解答题-问答题
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较易
(0.85)
解题方法
【推荐2】已知数列
满足:对任意
,有
.
(1)求数列
的通项公式;
(2)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b9df491bd6e6c601e12720e7fc06b3.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353b9c2ff232de7a6f68304206a75063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79ee9bb88c0d1b069a7924162a84ab8.png)
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