1 . 数列{an}满足:
,点
在函数
的图象上,其中k为常数,且
.
(1)若
,
,
成等比数列,求k的值;
(2)当
时,求数列
的前
项的和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7c9a6445ab0ddee8d69c9b3784cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e788c32187ae2cc97aaa24da1d40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9a0d7150fb24be3e28ef7f0e18be93.png)
您最近一年使用:0次
2022-11-28更新
|
574次组卷
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9卷引用:陕西省西安中学2021届高三第一次仿真考试数学(理)试题
陕西省西安中学2021届高三第一次仿真考试数学(理)试题(已下线)考点25 数列求和-备战2022年高考数学(理)一轮复习考点帮(已下线)考点24 数列求和-备战2022年高考数学(文)一轮复习考点帮(已下线)热点08 利用“不动点”法巧解数列问题-2022年高考数学核心热点突破(全国通用版)【学科网名师堂】(已下线)专题7.5 数列的综合应用(练)- 2022年高考数学一轮复习讲练测(新教材新高考)河北省冀东名校2022-2023学年高三上学期期中调研考试数学试题上海市奉贤区致远高级中学2022-2023学年高二上学期12月月考数学试题(已下线)专题15 数列求和-2山东省青岛市青岛第五十八中学2022-2023学年高二上学期期末数学试题
名校
2 . 已知
是等比数列,公比大于1,且
,
.记
为
在区间
中的项的个数,则数列
的前60项的和
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fb4b599e37a825bce2a0c29f09af8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a316124e688e76d6f330ffbea49d427d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f64696f60c533ad95dc7890eb902741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7181f019dec4eefd2dd092705050ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c320a0619c63a5b650a1a94c0a5679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e096395cf359ca14d80bef3ea199ba.png)
您最近一年使用:0次
2021-12-07更新
|
622次组卷
|
3卷引用:内蒙古呼和浩特市2022届高三上学期质量普查调研考试理科数学试题
2022高三·全国·专题练习
名校
解题方法
3 . 数列
满足
,
,若
,且数列
的前
项和为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8099bd4e5087d2947ce09ffd7abd86d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e17b3a240d38a30f9575f447184cae.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/30eb42578f654fb61e826026d2199751.png)
A.64 | B.80 | C.![]() | D.![]() |
您最近一年使用:0次
2021-07-31更新
|
1510次组卷
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5卷引用:陕西省西安中学2021届高三下学期第五次模拟数学(理)试题
陕西省西安中学2021届高三下学期第五次模拟数学(理)试题(已下线)第2讲 数列通项与求和(练)-2022年高考数学二轮复习讲练测(新教材地区专用)(已下线)专题7.8 数列求通项公式(小题)-2022届高三数学一轮复习精讲精练(已下线)专题11 数列前n项和的求法 微点10 数列前n项和的求法综合训练黑龙江省哈尔滨市第九中学校2023-2024学年高三下学期开学考试数学试题
名校
解题方法
4 . 已知数列
的前
项和为
,且满足
,
,
.
(1)证明:
为等比数列,并求数列
的通项公式;
(2)令
,其中
表示不超过
的最大整数,求数列
的前15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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79df6b501e8be189ef89bd39c000a4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f86e5aaea193d51fa06c58abb3898b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a70aa10c5078d2ed248500fd13cb752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ebc3123d1a95e8032be7a82261807a4.png)
您最近一年使用:0次
2021-12-05更新
|
1502次组卷
|
2卷引用:重庆市西南大学附属中学2022届高三上学期第四次月考数学试题
20-21高二·全国·课后作业
5 . 已知
中,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1f7536ff4ed7450fabf9db859784a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eed39c7d611309b01476c15ab242308.png)
您最近一年使用:0次
6 . 设数列
的前
项和是
,令
,称
为数列
,
,…,
的“超越数”,已知数列
,
,…,
的“超越数”为2020,则数列5,
,
,…,
的“超越数”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/945d3a467b1c212578437f50146f56fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5e369c19b97b165ae9879e58a2d80c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5e369c19b97b165ae9879e58a2d80c.png)
A.2018 | B.2019 | C.2020 | D.2021 |
您最近一年使用:0次
2021-10-05更新
|
920次组卷
|
7卷引用:重庆市西南大学附属中学2021届高三下学期第四次月考数学试题
重庆市西南大学附属中学2021届高三下学期第四次月考数学试题河南省新蔡县第一高级中学2021-2022学年高二上学期10月半月考数学(文科)试题(已下线)第04周周练(拓展二:数列求和)(已下线)2020年高考全国2数学理高考真题变式题11-15题(已下线)专题09 数列(选择题、填空题)-备战2022年高考数学(文)母题题源解密(全国甲卷)河南省新蔡县第一高级中学2021-2022学年高二上学期1月月考数学(文科)试题(已下线)专题11 数列前n项和的求法 微点10 数列前n项和的求法综合训练
解题方法
7 . 在数列
中,
,当
时,其前
项和
满足
.设
,数列
的前
项和为
.
(1)求
;
(2)求满足
的最小正整数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.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/4ed880bda8ca110d1e18b7a2fbea0891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d5d1461b1f6acec5ee89e75b272641.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)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4dab157ef488251a79cc238c4d6eb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
20-21高二·全国·课后作业
解题方法
8 . 已知各项均为正数的无穷数列
的前
项和为
,且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8295efdbf9a59a1fd6bd9704d9639aa6.png)
.
(1)求数列
的通项公式;
(2)记
表示不超过
的最大整数,如
,
. 令
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8295efdbf9a59a1fd6bd9704d9639aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132e9579e58d8d5225e2340e1f43adf1.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba03c120d10fa49e2eef50081b442e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36445a39e80b03c663ac4b613ddc5d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e4f4a9e5e4a13f69ce673b9b2c87bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e595b1cc755cf0dd076e91cf9e9a3e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4889f52bb9adc3eb3e0e5c13443ec0.png)
您最近一年使用:0次
名校
解题方法
9 . 已知
表示不超过
的最大整数,例如:
,
在数列
中,
,记
为数列
的前
项和,则
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e75f5c6e0605197e81c35265805178c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe433ad9925f6f9e4e1bdbe45969cd41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2167708d7d239a5ba4dfe11bd5d9f983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.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/da14545c3b4016fe1da93959d72e1e88.png)
您最近一年使用:0次
2021-06-30更新
|
1420次组卷
|
10卷引用:黑龙江省哈尔滨市第三中学2021届高三第三次模拟考试数学(文科)试题
黑龙江省哈尔滨市第三中学2021届高三第三次模拟考试数学(文科)试题黑龙江省哈尔滨市第三中学校2021届高三三模数学(文)试题(已下线)专题08 数列-2021年高考真题和模拟题数学(文)分项汇编(全国通用)福建省厦门外国语学校2021届高三5月高考适应性考试数学试题(已下线)模块综合练02 数列-2022年高考数学(文)一轮复习小题多维练(全国通用)(已下线)第16题 数列求和-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)(已下线)考向29 数列求和(重点)(已下线)专题16 数列-备战2022年高考数学学霸纠错(全国通用)(已下线)专题3 基本初等函数-学会解题之高三数学321训练体系【2022版】 辽宁省营口市大石桥市第三高级中学2023届高三上学期10月月考数学试题
名校
解题方法
10 . 已知数列
的前
项和为
,满足
(
,
为常数),且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc5f1f2750e4c21cdbdfb4575ca2d27.png)
___________ ;设函数
,
,则数列
的前17项和为___________ .
![](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/ded7a26c0a7681d419a0417cd634bb2d.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/ebff73fd68fc6e4e7540ff945679372a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc5f1f2750e4c21cdbdfb4575ca2d27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3167b51fe7c873a9006a0746e9efb2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc135b07188a5c3895fbff407c4d21d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1165edc23b5782b5942ef7e79130bb94.png)
您最近一年使用:0次
2021-06-21更新
|
513次组卷
|
6卷引用:河北衡水中学高三2021届三轮复习数学试题
河北衡水中学高三2021届三轮复习数学试题(已下线)专题7.2 等差数列及其前n项和(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)考点25 数列求和-备战2022年高考数学(理)一轮复习考点帮(已下线)考点24 数列求和-备战2022年高考数学(文)一轮复习考点帮人教B版(2019) 选修第三册 名师精选 第二单元 等差数列 B卷山东省潍坊市昌邑市第一中学2023-2024学年高二下学期3月月考数学试题