1 . 等比数列
的各项均为正数,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ebcb156349392023650a498a8c2a5e.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33dd49fb6e6bc6b5f39485ab8130fc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ebcb156349392023650a498a8c2a5e.png)
您最近一年使用:0次
2022-04-11更新
|
2067次组卷
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5卷引用:陕西省咸阳市武功县普集高级中学2023届高三下学期九模文科数学试题
陕西省咸阳市武功县普集高级中学2023届高三下学期九模文科数学试题江西省宜春市2022届高三模拟考试数学(文)试题山东省潍坊市2022届高三下学期5月模拟数学试题(二)(已下线)查补易混易错点09 数列-【查漏补缺】2022年高考数学(文)三轮冲刺过关(已下线)数学-2022年高考押题预测卷02(新高考卷)
2 . 已知正项等比数列{
}满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0333a73337b72d3811d9b619778074.png)
(1)求{
}的通项公式:
(2)求数列{
}的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0333a73337b72d3811d9b619778074.png)
(1)求{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)求数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2eed27c518fbad085ae7d6c5ee46b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2022-04-04更新
|
1350次组卷
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8卷引用:陕西省咸阳市武功县2022-2023学年高三上学期第一次质量检测理科数学试题
3 . 已知函数
,数列
满足
.数列
为等差数列,满足
,
.
(1)求数列
、
的通项公式;
(2)求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f1bf1b4fea733d960abe628896fb87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc20a15cba8a06328ff00e1b54350ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fe0f4e8a80a2840c0f6929a8a6351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad434a4b63932077a4e23db849089d64.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5344eadd4711db34e3f935aedd5fb270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2022-03-29更新
|
656次组卷
|
3卷引用:陕西省咸阳市2022届高三下学期二模文科数学试题
名校
解题方法
4 . 已知数列
的前
项和
.
(1)求
的通项公式;
(2)设
,求数列
的前
项和
.
![](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/f9cfdbd65c45ba947a847f356076270b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e191086446263b7bbbd93613577c42.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2022-03-26更新
|
809次组卷
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3卷引用:陕西省咸阳市高新一中2022-2023学年高三上学期第五次质量检测理科数学试题
解题方法
5 . 已知数列
的前n项和为
,若
(m为非零实数),且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35408ca8099bfd7870543512a0974e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad6a1c870e2b955a627688f0f3089a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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2022-03-16更新
|
224次组卷
|
2卷引用:陕西省咸阳市兴平市南郊高级中学2022届高三下学期三模理科数学试题
名校
6 . 在等比数列
中,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb0b216a7d35e0089f00f3e0e402746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92793e89fd752a2e7c1ac86a90b97db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa77d71408cc26212ca98ba04658882.png)
A.-8 | B.16 | C.32 | D.-32 |
您最近一年使用:0次
2022-03-05更新
|
2981次组卷
|
9卷引用:陕西省咸阳市乾县第一中学2023届高三上学期第四次质量检测理科数学试题
名校
解题方法
7 . 已知等差数列
的公差为
,其前n项和为
.若
成等比数列,则一定有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b1b845916a4b6a18cdfbcd308d09c4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-02-18更新
|
816次组卷
|
2卷引用:陕西省咸阳市2022届高三下学期一模理科数学试题
名校
解题方法
8 .
的内角
、
、
的对边分别为
、
、
,其面积为
,且
.
(1)求
的值;
(2)若
、
、
成等比数列,且
的面积是
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb4d195b72c85f3aeec8b60792ceb4c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
(2)若
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047616f1d1d39bf6c3cd07cf63ef5b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-05-11更新
|
1088次组卷
|
5卷引用:陕西省咸阳市兴平市南郊高级中学2021届高三下学期第九次练考理科数学试题
名校
解题方法
9 . 已知数列
的前
项和为
.
(Ⅰ)求
的通项公式;
(Ⅱ)设
,求数列
的前
项和
.
![](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/5b75dbb20178da2eec9ff11a9c74e841.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0f044dc82a12fd1c71872f2ac12d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.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
2021-05-09更新
|
270次组卷
|
2卷引用:陕西省咸阳市2021届高三下学期二模理科数学试题
解题方法
10 . 已知等差数列
的前
项和为
;等比数列
的前
项和为
,且
,
,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/034ba25825c13725931c483aa47c9363.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/ebaf2a2590bb84d646957f913d78f6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58fdf330073e4df7c8c627fd5150c1cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d68c6ff349e2571d0a55c8ae3bdf959.png)
A.13 | B.25 | C.37 | D.41 |
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