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1 . 已知正项数列
是递增的等差数列,
是公比为
的等比数列,且满足
,
,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/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fe0f4e8a80a2840c0f6929a8a6351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0426eb784f9c387f6a0d2e7e21a11118.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 设等比数列
的公比为
,其前
项和为
,前
项积为
,且满足条件
,
,则下列选项正确的是( )
![](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/08eb71ecf8d733b6932f4680874dbbf3.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/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7546e48012b6ee58ae977c5594b203e1.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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3 . 等比数列
的公比为
,且
成等差数列,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a0d6d97747503a060cad827fa4a12a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77c91fdcc48a8a9b80dddad022d8cc5.png)
A.![]() | B.若![]() ![]() |
C.若![]() ![]() | D.![]() |
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2024-05-02更新
|
310次组卷
|
3卷引用:四川省绵阳南山中学2023-2024学年高二下学期期中考试数学试题
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4 . 设等比数列
的公比为
,其前
项和为
,前
项积为
,且满足条件
,
,
,则下列选项正确的是( )
![](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/08eb71ecf8d733b6932f4680874dbbf3.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/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74dbbdb325cfdc2076fdfbc8d916cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77295c965c7b406c77b8d8e3c27e7bb7.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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2022-11-02更新
|
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7卷引用:四川省南充市阆中中学2023-2024学年高二下学期期中数学试卷
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5 . 在等比数列
中,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4505c798e95c0602f5348215828c8259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe3c295a3b53a1d99557cad2f656abc.png)
A.48 | B.72 | C.144 | D.192 |
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|
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5卷引用:四川省泸州市泸县第四中学2021-2022学年高一下学期期中考试数学试题
四川省泸州市泸县第四中学2021-2022学年高一下学期期中考试数学试题四川省宜宾市叙州区第一中学校2021-2022学年高一下学期期中考试数学试题陕西省西安市周至县第四中学2022-2023学年高三上学期期中文科数学试题(已下线)专题05 等比数列与数列综合求和-2023-2024学年高二数学期末复习重难培优与单元检测(人教A版2019)陕西省西安市西北工业大学附属中学2023-2024学年高二下学期3月月考数学试题
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6 . 若等比数列
的各项均为正数,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e9729a4824f47d50937e093088429f.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bdaaa880ba43b71f89e71e43663151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e9729a4824f47d50937e093088429f.png)
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7 . 在各项均为正数的等比数列
中,
,则
的最大值是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a102057438f01fb00daf3ec38ee432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9344941976205e158cb3aa9a9f47df.png)
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|
739次组卷
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9卷引用:四川省阆中中学校2023-2024学年高二下学期4月期中学习质量检测数学试题
四川省阆中中学校2023-2024学年高二下学期4月期中学习质量检测数学试题四川省南充市阆中中学2023-2024学年高二下学期期中数学试卷福建省莆田第二十五中2021-2022学年高二上学期期中考试数学试题福建省莆田第二十五中学2022-2023学年高二上学期期中考试数学试题福建省泉州市晋江一中2020-2021学年高二下学期数学期末试题(已下线)专题4.2 等比数列的性质-2021-2022学年高二数学特色专题卷(人教A版2019选择性必修第二册)2023版 苏教版(2019) 选修第一册 突围者 第4章 第三节 课时1 等比数列的概念、等比数列的通项公式福建省福州第八中学2022-2023学年高二上学期12月适应性训练数学试题(已下线)第4讲 等比数列的通项及性质5大题型总结(2)
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8 . 等比数列
的各项均为正数,已知向量
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7a84ecc798f9f9c8af9c77517c408e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c749cd36cf3749c2d022617f036f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f3e99134aa61df7d59eb7aa2fa2bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793be84d1bf071f4c80cf98adb398e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7a84ecc798f9f9c8af9c77517c408e.png)
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9 . 下列说法中:
①在
中,若
,则
;
②已知数列
为等差数列,若
(
,
,
,
),则
;
③已知数列
、
为等比数列,则数列
、
也为等比数列;
④若
,则函数
的最大值为
;
其中正确的是( )
①在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2240a87f7a508cef8df7a45801ca7f5a.png)
②已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8636c7bb159600cea1e74b615bdb4449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e5a5ad56fa1c21f2f13e13b66090fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d924373dcc14abf88ef632e97023c8a0.png)
③已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4947c146bb958c7f87be18e595451eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b533a4c066c74bfec6e20805bea5aa.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e3727959c931222f1f0df95128e411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9441083768c0722a00402d38a75a71b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2daae93d9b06c4ff7a690ba1f86df7.png)
其中正确的是( )
A.①③ | B.②④ | C.②③ | D.①④ |
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解题方法
10 . 在下列各式中,
①如果
,
,
,
,
成等比数列,那么
;
②
中,若
,且
,则
是等边三角形;
③若两个正实数
、
满足
,并且
恒成立,则实数
的取值范围是
;
④若等比数列
的前
项和
,则
的值为
;
⑤若
,
,则
有最大值为
.
其中正确的有_______ .(填上你认为正确的所有序号)
①如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec54f53122364c46e1e43d1a84f210fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3828868765caa2ebed51aca7dc594993.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b90f6602c596b98cb318154cbeb6810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7098e7fdd9d6f543265b359a1f038d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
③若两个正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04645353d91a5beb6d02c06bb62683a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bb1489d3f4a09b5d0222ffadcd3ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5548c101f84334ab651fd7139e324f4.png)
④若等比数列
![](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/38f8f142b54992a69dc24bb476b63aa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c270c7508ec18bfae26af47763aab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b30454c44c3b2637b4829fe832e27845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28571007726d15817c444527e2fe101b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2420b3e8a08d10f43a1a8d26aeedebe0.png)
其中正确的有
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