设数列
满足
,且
,则数列
前10项的和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62378f233afb2a01d42d07f1986fb3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a44cfbb86a4eb76261c00ddc6bff181.png)
A.![]() | B.![]() | C.![]() | D.![]() |
16-17高二·安徽六安·课后作业 查看更多[3]
2016-2017学年安徽六安一中高二理上国庆作业数学试卷内蒙古赤峰二中2021-2022学年高一下学期第二次月考数学(理)试题(已下线)第四章 数列(单元测试)-【上好课】高二数学同步备课系列(人教A版2019选择性必修第二册)
更新时间:2016-12-04 22:43:43
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【推荐1】已知数列
中,
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53271336649378a043f9da8b8bdc1cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a50f815f27b1c935fe28935cb2d3ff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图甲是第七届国际数学教育大会(简称ICME—7)的会徽图案,其主体图案是由图乙的一连串直角三角形演化而成的.已知
,
,
,
,
为直角顶点,设这些直角三角形的周长从小到大组成的数列为
,令
,
为数列
的前
项和,则
( )
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896385661050880/2900871888953344/STEM/6d19b323-3cee-43ee-b4d0-e26f0b0ff0b3.png?resizew=385)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7318284526d4af3416d9827bdadf2822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9200c9dd0fb3f5ac96aaf9c0dfab14a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e7dfbd971d9313149d43f525207a16.png)
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896385661050880/2900871888953344/STEM/6d19b323-3cee-43ee-b4d0-e26f0b0ff0b3.png?resizew=385)
A.8 | B.9 | C.10 | D.11 |
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【推荐2】如果执行右面的框图,输入
,则输出的数等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/c49d4e8d-5777-4e8e-bd54-ca55b73062dc.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc133d5b11b33a904875182d8c8261.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/c49d4e8d-5777-4e8e-bd54-ca55b73062dc.png?resizew=154)
A.![]() | B.![]() | C.![]() | D.![]() |
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