名校
解题方法
1 . 设等比数列
的前n项和为
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb708a25d30954a0a50b01d59453bbe.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/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315b41eeea0dbaa395af2474c4ba6acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb708a25d30954a0a50b01d59453bbe.png)
您最近一年使用:0次
2023-12-12更新
|
339次组卷
|
4卷引用:上海市虹口区2024届高三上学期期终学生学习能力诊断测试数学试题
上海市虹口区2024届高三上学期期终学生学习能力诊断测试数学试题上海市闵行(文琦)中学2023-2024学年高二上学期期末考试数学试题上海市吴淞中学2023-2024学年高二下学期期中考试数学试卷(已下线)专题04数列全章复习攻略--高二期末考点大串讲(沪教版2020选修)
2 . 对于数列
,若
是关于
的方程
的两个根,且
,则数列
所有项的和为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d514eb8dff80d4dc3f39de516b63b846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cede7b90e49fca9069a92c36fdc5d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
您最近一年使用:0次
2022-09-11更新
|
818次组卷
|
4卷引用:上海市虹口区2021-2022学年高二下学期期末在线测试数学试题
上海市虹口区2021-2022学年高二下学期期末在线测试数学试题福建省宁德第一中学2022-2023学年高二上学期9月月考(一)数学试题(已下线)专题4求和运算 (提升版)(已下线)4.2 等比数列的前n项和(第2课时)(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020选择性必修第一册)
名校
3 . 数列
的通项公式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219e9aab3a7334c2da63eafd4ce8b4b0.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2880eed03628af7f92883b3b1ec0f733.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219e9aab3a7334c2da63eafd4ce8b4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d98e8f85654ef7a6045da3c0554dddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2880eed03628af7f92883b3b1ec0f733.png)
您最近一年使用:0次
名校
解题方法
4 . (1)已知等差数列
满足
,且
,若数列
的前
项和为
,求
的值.
(2)已知数列
的前
项和
满足
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37933cfc60b4bd29f1684687ddd2cbd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e37862eca29f3fd08296ca0609d714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667467e32bbaf18ca017d449b7e22f09.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/58abe92020722722506c7b12c7879ac5.png)
(2)已知数列
![](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/89faca9dd2d671c9d3c44ed194684330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f8f4891202f26a03cdeb1c353057cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17de0cb747dce9af8cdc696f612b908b.png)
您最近一年使用:0次
名校
5 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b819cba1ad7aac12ec4784d99eadba94.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b819cba1ad7aac12ec4784d99eadba94.png)
您最近一年使用:0次
6 . 已知
为等差数列
的前
项和,若
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e971d3adcb4d357d09b6788b118a41c.png)
(1)求数列
的通项公式;
(2)对于数列极限有如下常用结论:
,设
,用记号
表示
,试求
的值.
(3)从(2)的数列
中取出部分项按原来的前后顺序组成一个无穷等比数列
,且满足它的各项和等于
,试求出
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/b1549723d901eeb2cf966e322f404a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e971d3adcb4d357d09b6788b118a41c.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)对于数列极限有如下常用结论:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddb948447262439c4f9484408cb5430c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ccd129274e6ff1acbf62d4283cb838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50532318393877acc90645a36548d168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f4a04c4ab5924fac3cb88310e972d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a339a8fb920efc3e1afc1244af6ec2d5.png)
(3)从(2)的数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee5447f1268cfd1949810ba8db48308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
您最近一年使用:0次
名校
解题方法
7 . 王先生因病到医院求医,医生给开了个处方药(片剂),要求每天早晚8时各服一片,已知该药片每片
毫克,每
小时从体内排出这种药的
,并且如果这种药在体内的残留量超过
毫克时,就将产生副作用,请问:
(1)王先生第一天上午8时第一次服药,则第二天早晨8时服完药时,药在他体内的残留量是多少?
(2)如果王先生坚持长期服用此药,会不会产生副作用,为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc011a0862d1f780331f1e9f8a467a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beddb9806191a43e6c6b194300981f11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1694dba9ccded41faa4e2110a77f45.png)
(1)王先生第一天上午8时第一次服药,则第二天早晨8时服完药时,药在他体内的残留量是多少?
(2)如果王先生坚持长期服用此药,会不会产生副作用,为什么?
您最近一年使用:0次
2021-01-01更新
|
199次组卷
|
2卷引用:上海市虹口区上海外国语大学附属外国语学校2019-2020学年高二上学期期末数学试题
解题方法
8 . 设
是公差为
的等差数列,且
,
是等比数列,其前
项和为
,
为坐标原点,向量
,
,点列
满足
,其中
.
(1)求:
与
的通项公式;
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced4e381e8c3336848b8c436dbc584f3.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/5bef6cf7cb4d85290710c9dd25055581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3210cea8e8969b0b1a3d1efbf9e35f74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b45686d88c7c884917adc9b4f263945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c051c2459ca7e2edd8ece9e565ec4b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396a2a0d9aa353c2cd5044d0109459b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
(1)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ed7238ae21912529c6c054979bfcab.png)
您最近一年使用:0次
真题
9 . 等差数列
、
的前
项和为
和
,若
,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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d3d080db7dc0e796230816506deff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273920d9126c0f23796c2a9ba8a8310a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-01更新
|
309次组卷
|
3卷引用:上海市虹口区上海外国语大学附属外国语学校2019-2020学年高二上学期期末数学试题
10 . 我们用
表示内接内接于单位圆的正
边形的边长,那么对于正
边形的边长
可通过图得到如下关系式
.例如:当
时,
,
,
,
,根据如上叙述以及极限的意义,计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890c41e8dcb4296dd0ee2443bf9d2495.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07f7a46323e7630dd8cd5cffcb11a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2f6b1fcee4a88827d09dc94da44ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7602f9470a610a5f15e7afda71223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b118e39a6f4fa622b224cc82632362f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975746ba45636af42ba70e3aeab9b858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee7bb49247387a9028602315729f8d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890c41e8dcb4296dd0ee2443bf9d2495.png)
![](https://img.xkw.com/dksih/QBM/2020/12/29/2624652614901760/2626714205757440/STEM/66a6eb807b0f4693b6bdcc0c0e7993d6.png?resizew=193)
您最近一年使用:0次