设等差数列
满足
,
,且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9b4f764dcedeee11023817f5880b60.png)
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac52eacb833a7a2d4c5d07340d2365d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9b4f764dcedeee11023817f5880b60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61870eff53eff3e1789748fe969d5877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0783de52c2ebaf217f12d3cd1d0ae5d1.png)
A.10100 | B.10000 | C.9900 | D.9801 |
更新时间:2023-04-15 15:42:17
|
相似题推荐
【推荐1】已知数列
满足:
,给出两个结论:①
;②
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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A.①成立,②成立 | B.①成立,②不成立 | C.①不成立,②成立 | D.①不成立,②不成立 |
您最近一年使用:0次
【推荐2】如图,这是由“杨辉三角”拓展而成的三角形数阵,图中虚线上的数1,3,6,10,…构成数列
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/30/a8aa5bad-df51-4e2b-a042-758fb8822934.png?resizew=199)
A.20099 | B.20100 | C.21000 | D.211001 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】已知等差数列
满足
,
是数列
的前n项和,则使
时,自然数的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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A.5 | B.8 | C.9 | D.10 |
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单选题
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名校
【推荐2】椭圆
上有
个不同的点
,椭圆右焦点
,数列
是公差大于
的等差数列,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebc8fdcdb71319d251c0d231bd149f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2387dc0dfdccb80b9d049cc2df1ef9.png)
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A.2017 | B.2018 | C.4036 | D.4037 |
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单选题
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【推荐1】设等差数列
的前n项和
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,对任意正整数n,都有
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bccd56118ffbfc31be65c908978900e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7be34ef789647dde3977a1c02fd74a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1340718507150998c9ac8fc3c119d649.png)
A.1006 | B.1007 | C.1008 | D.1009 |
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【推荐2】在等差数列
中,
,
成公比不为1的等比数列,
是
的前
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与数列
的公共项从小到大排列得到新数列
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A.1 | B.![]() | C.![]() | D.![]() |
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