1 . 等比数列
中,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df1038200f2d97a52c716aab6c3bcb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259b2e755105c0ee479eabf7265a76a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2 . 已知数列
是公比为2的等比数列,
,
,
成等差数列.
(1)求
的通项公式;
(2)设
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebfa14def8b0176f9f0bcb6d9ceeaa4b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0f044dc82a12fd1c71872f2ac12d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
3 . 已知等比数列
为递增数列,满足
,
.
(1)求数列
的通项公式;
(2)数列
满足
,求
的前
项和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740f440e140fe06042622d15f65d614c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07e6c52c63e6603a9471a718166e106.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8a54464b3744b32398d162c4393c1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da72309d2507e2f5e5ed88d8cc08963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
名校
解题方法
4 . 数列
为等比数列,下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.数列![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若该数列前![]() ![]() ![]() |
您最近一年使用:0次
2023-03-23更新
|
654次组卷
|
4卷引用:黑龙江省大庆铁人中学2022-2023学年高二上学期期末考试数学试题
黑龙江省大庆铁人中学2022-2023学年高二上学期期末考试数学试题广西钦州市第四中学2022-2023学年高二下学期3月月考数学试题辽宁省葫芦岛市绥中县第一高级中学2022-2023学年高二下学期4月月考数学试题(已下线)4.3.1等比数列的概念(第2课时)(分层作业)(4种题型)-【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)
名校
5 . 已知各项均为正数且单调递减的等比数列
满足
,
,
成等差数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99e4340690e699db7fa29384c39df5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fb3dd5b3c0d098ad8cce5de1e604f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8afb5276cccd088ed7cada99858bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99e4340690e699db7fa29384c39df5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
您最近一年使用:0次
名校
6 . 已知等比数列
的前
项和为
,且
,则
的公比
为( )
![](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/a53ab25ef63e7ed2a9f6f4d345518e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.2 | B.![]() | C.2或![]() | D.1或![]() |
您最近一年使用:0次
2022-12-06更新
|
350次组卷
|
2卷引用:黑龙江省哈尔滨师范大学附属中学2022-2023学年高二上学期期末考试数学试题
名校
解题方法
7 . 已知各项均为正数的等比数列
的前
项和为
,若
,则
的值为( )
![](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/b6fa0122bb75290808d86f4f8ac07ffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77b4f372baf22e67cdb6012e968e1a4.png)
A.4 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
2022-11-27更新
|
2512次组卷
|
10卷引用:黑龙江省齐齐哈尔市富裕县第三中学2023届高三上学期11月月考数学试题
黑龙江省齐齐哈尔市富裕县第三中学2023届高三上学期11月月考数学试题江苏省南京市六合区励志学校高中部2022-2023学年高三上学期第二次调研考试数学试题全国名校大联考2022-2023学年高三上学期第三次联考数学试卷广东省汕头市聿怀中学2022-2023学年高二上学期期末数学试题河南省新乡市第一中学2023届高三三轮冲刺能力测试第六测理科数学试题(已下线)4.3 等比数列(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)云南省楚雄东兴中学2024届高三上学期10月考数学试题甘肃省庆阳市华池县第一中学2023-2024学年高二上学期期中考试数学试题2024年新高考Ⅰ卷浙大优学靶向精准模拟数学试题(八)湖南省长沙市长郡中学2024届高考适应考试(四)数学试题
名校
解题方法
8 . 已知数列
是等比数列,下列结论正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2022-11-07更新
|
406次组卷
|
3卷引用:黑龙江省哈尔滨师范大学附属中学2022-2023学年高二上学期期中考试数学试题
9 . 已知等比数列
各项均为正数,满足
,
,记等比数列
的前n项的积为
,则当
取得最大值时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13765f52da0806cfbf7e3fdbc01e1fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb396b3cd8903fe87a4c961c2371580b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.8 | B.9 | C.10 | D.11 |
您最近一年使用:0次
2022-11-06更新
|
513次组卷
|
3卷引用:黑龙江省齐齐哈尔市八校联合体2022-2023学年高三上学期期中考试数学试题
名校
10 . 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.![]() |
您最近一年使用:0次
2022-10-28更新
|
587次组卷
|
5卷引用:黑龙江省牡丹江市第一高级中学2022-2023学年高三上学期期中考试数学试题