数列
定义如下:
,若
,则正整数
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47c7e07855287402297f53b3f305e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd158a5c484f8690addb4eec433c708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2017-02-08 10:15:14
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名校
解题方法
【推荐1】已知各项均为正数的数列{an}的前n项和为Sn,且满足anan+1=2Sn(n∈N*),则a2+a4+a6+…+a66=______
您最近一年使用:0次
填空题-单空题
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适中
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【推荐2】已知各项为正的数列
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,则
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐1】已知数列
前
项和为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894aaec56149f880c7cf2bbc0f358d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
您最近一年使用:0次
【推荐2】若数列
和数列
同时满足
,
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______ .
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ea014220aa658c8baa6e1f43e686a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d24dc5049b3ecd0f4892c63aebe5176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36edb6320f76289e704f94642a48da4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
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