1 . 设复数数列
满足:
,且对任意正整数n,均有:
.若复数
对应复平面的点为
,O为坐标原点.
(1)求
的面积;
(2)求
;
(3)证明:对任意正整数m,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078c417ea54a5065c1f72941b9e4b0be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b670aca396b96eaf2c553b1ca84486dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a383b03b4869ea984d58b8d87c35402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012d2d40a71783e79d67e7fbb01bc93a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8312ce4d9e9f0aff13e64d93fbea921e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5927f1967a8f72e8fb887edb5023a921.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fec8f8ce956e4621c34db6218ed072.png)
(3)证明:对任意正整数m,均有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea99696f6df9d98c2dcc87832002874.png)
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2 . 已知数集
具有性质P:对任意的
,使得
成立.
(1)分别判断数集
与
是否具有性质P,并说明理由;
(2)已知
,求证:
;
(3)若
,求数集A中所有元素的和的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b7edfe73bdd0bb2a6e84512b62bdc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a921d157d198de0f934da07e16dc7df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1e76d1341e8e6bd89b7075150536bd.png)
(1)分别判断数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59970351aa04d29f62d480c7280763e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a3069c8accda13019e775a5dc198c2.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108bce68aab5565c4ed9a0c3e11150e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7006f52b1f7cf1bdf8374bd2da3e4562.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a94ec87afbc073e077f2c453a304b.png)
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2022-05-13更新
|
1010次组卷
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7卷引用:北京市中国人民大学附属中学朝阳学校2022一2023学年高一上学期10月阶段检测数学试题
3 . 已知数列{
}的前n项和为
,且满足
.
(1)求数列{
}的通项公式;
(2)设数列
的前n项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b5b92877484c401bc2c56c43c41fb7.png)
(1)求数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b191044f5c024f377d999910b78b422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc63f77d5522a0853c9d7d7158987c88.png)
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4 . 已知数列
满足
,
,数列
的前
项和为
,则使不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed52052b02762c35a651572215d0826.png)
成立的最小正整数
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5b1b1cbd3544ae1812b9f65e957784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.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/eed52052b02762c35a651572215d0826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b11cd2083a38e421928fea51168e0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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5 . 已知公比不为1的等比数列
满足
成等差数列,其前
项和为
,下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015508b7c593ff479291c1568afdf702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 干支纪年法是中国历法上自古以来就一直使用的纪年方法、干支是天干和地支的总称,甲、乙、丙、丁、戊、己、庚、辛、壬、癸为天干:子、丑、寅、卯、辰、已、午、未,申、酉、戌、亥为地支.把十天干和十二地支依次相配,如甲对子、乙对丑、丙对寅、…癸对寅,其中天干比地支少两位,所以天干先循环,甲对戊、乙对亥、…接下来地支循环,丙对子、丁对丑、.,以此用来纪年,今年2020年是庚子年,那么中华人民共和国建国100周年即2049年是( )
A.戊辰年 | B.己巳年 | C.庚午年 | D.庚子年 |
您最近一年使用:0次
2020-07-07更新
|
1060次组卷
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7卷引用:江西省崇义中学2020-2021学年高一上学期期中考试数学试题(B卷)
江西省崇义中学2020-2021学年高一上学期期中考试数学试题(B卷)1.1 -1.2 周期现象与角的概念与推广 2020-2021学年高一数学北师大版2019必修第二册辽宁省锦州市黑山县黑山中学2020届高三6月模拟考试数学(文)试题辽宁省锦州市黑山县黑山中学2020届高三6月模拟考试数学(理)试题(已下线)专题01 数列的概念及简单表示(专题测试)-2020-2021学年高二数学重难点手册(数列篇,人教A版2019选择性必修第二册)陕西省西安市长安区第一中学2022-2023学年高二下学期期末文科数学试题陕西省西安市长安区第一中学2022-2023学年高二下学期期末理科数学试题
7 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3830c962a99ad42a82cc6327a79cc592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5921d5addb93829e146437d4058da5f6.png)
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2020-02-05更新
|
251次组卷
|
3卷引用:人教B版(2019) 必修第二册 逆袭之路 第五章 5.1 统计 小结
名校
8 . 设
,用
,表示所有形如
的正整数集合,其中
且
,
为集合
中的所有元素之和,则
的通项公式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39982e0dbd96546808e7b6e76ce16ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fce48edaa26dd12e7237d101ff163f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc73442fcbd311d8d64cb2a334eee62a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
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9 . 由1开始的连续n个正整数相乘,简记为
,如
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63988046c443c4d3440a0dee032285e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7fa533c670ec0aabc613ab1b6fde372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c510ee5e16312f9d01fb3e24cd28d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63988046c443c4d3440a0dee032285e4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 数列
为等差数列,且满足
,数列
满足
,
的前n项和记为
.问:当n为何值时,
取得最大值,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e252e470fdfcf33ff944beac0725c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa346f369e6272b05fdf1fdba338fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2019-01-29更新
|
328次组卷
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2卷引用:人教A版 成长计划 必修5 第二章数列 应用·拓展·综合训练