1 . 已知数列
满足
.若数列
是公比为2的等比数列,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb750a274187cd3b78d078749f1fd4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0dc13236eaa2bd0cdc0f24beea11fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd21f4cb498101d26b4aaa2e1a6addc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
2 . 已知三棱锥
的棱长均为6,其内有
个小球,球
与三棱锥
的四个面都相切,球
与三棱锥
的三个面和球
都相切,如此类推,…,球
与三棱锥
的三个面和球
都相切(
,且
),则球
的表面积等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be77704255b3cadb7ae2a66ec35205ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28cc0f93939bfa9e1f913b18dd9d15ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be77704255b3cadb7ae2a66ec35205ec.png)
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2023-07-21更新
|
375次组卷
|
2卷引用:江西省新余市2023-2024学年高三上学期期末质量检测数学试卷
解题方法
3 . 设正项数列
的前
项和为
,且
,从
中选出以
为首项,以原次序组成等比数列
,
,…,
,…,
.记
是其中公比最小的原次序组成等比数列,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017363d40ccfe8aceb85bb6f7d574a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8ebcd5b8f8ae04513834a70575816f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3aaabba90eefb861068bf014f9d0b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f92c44061fda94a2b45b94d7b816555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4c3f450e956bda91ed86a596563a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1898d2723d447e26d25f266bfe3ce4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bfa30eac161e8cfe93f1c5ab4fb42dd.png)
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4 . 已知数列
的前
项和为
,正项等比数列
中,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a11075d482ffc34b3c8865cbfb3e0af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ee1fd9cc31c46e4aa7500d074d958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c340fdadffa2f9120a70430ce477f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06959eba696b79293110b13c23a57c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a11075d482ffc34b3c8865cbfb3e0af.png)
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2018-11-09更新
|
2704次组卷
|
4卷引用:江西省新余市第四中学2021-2022学年高二上学期第一次月考数学(理)试题
名校
解题方法
5 . 在数列
中,
,数列
的前
项和为
,若不等式
对
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541f9bc5d9ff1cc8504b5f2239c269fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345edc602f5c52122b91e6864902fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e583ed82e82d32d74250fc52543eadf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2023-02-25更新
|
354次组卷
|
3卷引用:江西省景德镇市乐平中学2023-2024学年高二下学期4月期中考试数学试题
江西省景德镇市乐平中学2023-2024学年高二下学期4月期中考试数学试题河南省安阳市重点高中2022-2023学年高二下学期阶段性测试(开学考)数学试题(已下线)【练】专题6 与数列有关的不等式恒成立问题
名校
6 . 已知等比数列
的前3项和为3,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69ff89d55a9b741e565ece5b448d89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc875ca919921e8f63a6fca648561b.png)
A.![]() | B.4 | C.![]() | D.1 |
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2022-01-21更新
|
648次组卷
|
4卷引用:江西省赣州市第三中学2022届高三适应性考试(三)数学(文)试题
7 . 已知等比数列{
}为递增数列,
是它的前
项和,若
=
,且
与
的等差中项为
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c748e40ba21ac5063d3bccaa57ef278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-11-02更新
|
616次组卷
|
5卷引用:江西省万安中学2023届高三一模数学试题(文科)
名校
8 . 在各项为正的递增等比数列
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd9aa5ea928f401f91440cfa7870c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfcc8a61ad8e2deef04a234e2a0a96f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/824e45b2cbaa406d6f7636e765962f57.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5卷引用:江西省宜春市万载中学2021-2022学年高一下学期第三次月考数学(文)试题
9 . 在数列
及
中,
,
设
,则
( )
![](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/7becbb0cf082d098064cea9a292a023f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8713096d070fd3127478b5dd4d4c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bf746a401d18882358479ce76f9896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e036008e81bd371695d685068cd348e4.png)
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2024-01-13更新
|
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2卷引用:江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(四)
10 . 等比数列
的公比为
,前
项积
,若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb149940b41456547a8f8c94b1e390e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa81d00805e5be4845c619037f149d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25594467198d151eead3e9eae0e9b934.png)
A.![]() | B.![]() ![]() |
C.![]() | D.使![]() ![]() ![]() |
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2021-11-29更新
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872次组卷
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3卷引用:江西南昌青山湖区南昌三中雷式学校2020-2021学年高一下学期期中数学试题
江西南昌青山湖区南昌三中雷式学校2020-2021学年高一下学期期中数学试题山西省朔州市怀仁市大地学校2021-2022学年高二上学期第四次月考数学试题(已下线)第4章 数列(单元提升卷)-2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)