名校
解题方法
1 . 已知
,则在数列
的前40项中最大项和最小项分别是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb35b64c7729720f573c1674bb293c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2020-04-11更新
|
1074次组卷
|
5卷引用:江西省南昌市四校联盟2019-2020学年高三第二次联考数学(文)试题
2 . 已知定义在
上的函数
满足
,且当
时,
.设
在
上的最大值为
(
),且数列
的前
项的和为
.若对于任意正整数
不等式
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f875c6190f0f1f9979a3386a1eb0b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50af11c345056215054f7cfe679939da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd02b69b76000f9b9826d9929a324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96637cd2d57c407b77331e1954447f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24a2cbfd3264a169be8945a2b1afd8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-10更新
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1736次组卷
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5卷引用:江西南昌青山湖区南昌三中雷式学校2020-2021学年高一下学期期中数学试题
江西南昌青山湖区南昌三中雷式学校2020-2021学年高一下学期期中数学试题2020届东北三省四市教研联合体高考模拟数学(理)试题2020届黑龙江省哈尔滨市(东北三省四市)高三下学期高考调研模拟数学(理)试题贵州省思南中学2023届高三数学模拟试题(已下线)第02讲 函数的性质:单调性、奇偶性、周期性、对称性(十三大题型)(讲义)
11-12高三上·广东茂名·期末
名校
解题方法
3 . 已知数列
是首项为
,公比为
的等比数列,设
,数列
满足
.
(1)求证:
是等差数列;
(2)求数列
的前
项和
;
(3)若
一切正整数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2438f2272d7b7ab51dbbe587025a553d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6821eb83c0e78f23cbf124d364ced75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4eabac7b864584927415ff161ada3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9221c0c92a526f65533cdc5400767af.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eec8c824d00f7f409a8d49599fb6840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-03-21更新
|
564次组卷
|
9卷引用:2011届江西省六校高三联考数学理卷
(已下线)2011届江西省六校高三联考数学理卷江西省宜春三中2017-2018学年高二上学期第一次月考数学试题(已下线)江西省南昌市南昌十中2019-2020学年高一下学期第一次月考数学试题(已下线)2011届广东省高州市大井中学高三上学期期末考试数学文卷(已下线)2014届北京市东城区普通校高三上学期期中联考文科数学试卷2014-2015学年湖北省孝感高中高一下学期期末考试数学试卷2016-2017学年辽宁东北育才学校高二上期中数学试卷河北省武邑中学2018-2019学年高二上学期期中数学(理)试题湖北省武汉市武钢三中2019-2020学年高一下学期期中数学试题
名校
4 . 以下结论正确的个数是( )
①若数列
中的最大项是第
项,则
.
②在
中,若
,则
为等腰直角三角形.
③设
、
分别为等差数列
与
的前
项和,若
,则
.
④
的内角
、
、
的对边分别为
、
、
,若
、
、
成等比数列,且
,则
.
⑤在
中,
、
、
分别是
、
、
所对边,
,则
的取值范围为
.
①若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832d227bf3b38834727782b6cafbc04a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbd5bb726a08c308b48373afebbb768.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91bc6265f002763df08acb5a2746883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
③设
![](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/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/399cf4338a44ac4966e57122508951fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca32ba203766d597d0756aa2072afed.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/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/18af922d7bcd7a1bfbd89398d86eda5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b850b6c714abe0d117eae47783230b0.png)
⑤在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98aa2d95ef06695d19891a4b198e6233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca69890d870ac9a79fe891ff57396e37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bdfcd0be6d5b8bb3a40f40780773543.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
2019高三·全国·专题练习
名校
5 . 数列{an}的通项公式为an=
,则数列{an}中的最大项是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f75ce1fd23e506e2c37868c1ee269b4.png)
A.3![]() | B.19 |
C.![]() | D.![]() |
您最近一年使用:0次
2020-01-23更新
|
308次组卷
|
8卷引用:江西省新余市第四中学2021-2022学年高二上学期第一次月考数学(理)试题
江西省新余市第四中学2021-2022学年高二上学期第一次月考数学(理)试题(已下线)专题6.1 数列的概念与简单表示法(讲)【文】—《2020年高考一轮复习讲练测》(已下线)专题6.1 数列的概念与简单表示法(讲)-江苏版《2020年高考一轮复习讲练测》湖南省永州市第一中学2021-2022学年高二下学期第二次月考数学试题安徽省铜陵市第一中学2019-2020学年高一下学期在线测试数学试题河南省鹤壁市高中2022-2023学年高二上学期11月居家测试(一)数学试题湖南省株洲世纪星高级中学2022-2023学年高二上学期期末数学试题安徽省宣城市宣城中学2023-2024学年高二上学期第二次月考数学试题
6 . 已知
为等差数列,
,
,
的前
项和为
,则使得
达到最大值时
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e7bae8e3bfecaceda505bb320563e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54d13f0641d204776cc8827733ec49fb.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.19 | B.20 | C.39 | D.40 |
您最近一年使用:0次
名校
7 . 若数列{an},{bn}的通项公式分别是
,且an<bn对任意n∈N*恒成立,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668c0ce57adf40aa74adee44736db6ca.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
8 . 已知数列
满足
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7efa818b5212355c87f16cec6c16769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77288bfa684c2a9ca00c75743232a0e3.png)
您最近一年使用:0次
2019-09-23更新
|
399次组卷
|
3卷引用:江西省彭泽县第一中学2020-2021学年高二上学期第一次月考数学试题
名校
9 . 已知数列
满足
(
,且
),且
,设
,
,数列
满足
.
(1)求证:数列
是等比数列并求出数列
的通项公式;
(2)求数列
的前n项和
;
(3)对于任意
,
,
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ec795c016151d50ced08795e8f2186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc97237d3006f403edcd153ed34569fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa5ff2506a5d01502f07c80f024fc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400f2d28274786ddcef7d91466a77005.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2de706dc5f0439b989273a5367f63a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2187ee1ea3b7e47a6283314322e5decf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd692d57128f3344f19e472f094d7566.png)
您最近一年使用:0次
2019-07-16更新
|
894次组卷
|
3卷引用:江西省新余市第一中学2019-2020学年高二上学期第一次段考数学试题
10 . 已知数列
的前
项和为
,
,
,其中
为常数,若
,则数列
中的项的最小值为__________ .
![](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/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c04ed573fdf7eed01d71aaeb065245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2f413c8adce901d68c7c0ff354cc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
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2019-01-01更新
|
788次组卷
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5卷引用:2020届江西名师联盟高三上学期第一次模拟考试数学(文)试题