2021高三·江苏·专题练习
1 . 若有穷数列
、
、
、
满足
,
(这里
、
,
,
,常数
),则称有穷数列
具有性质
.
(1)已知有穷数列
具有性质
(常数
),且
,试求
的值;
(2)设
(
、
,
,
,常数
),判断有穷数列
是否具有性质
,并说明理由;
(3)若有穷数列
、
、
、
具有性质
,其各项的和为
,将
、
、
、
中的最大值记为
,当
时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a5e8068c37cb8e291597c182342ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697187fb63c0197d8571ba8b34ffe635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee4e4ef6bc78dc8e69bf99c2807b7b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9365cd317b3f297a7607b5f56e6bfcbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8f69402300f6ed932697689212e91c.png)
(1)已知有穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8f69402300f6ed932697689212e91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5623f1f4cc5883f328c58eb7a22a32cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc05f5b69f8145ec6ff56439043d4ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c35b74565bd582bf03ee99921a732d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9365cd317b3f297a7607b5f56e6bfcbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22857b6d571d49dd4e0f05dc45b5b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fa4e5c4afb538ea64a58ef8643fe42.png)
(3)若有穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7655690a1ffdaed9500fe68368c9033e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2387880727d458702651d699e76d7d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4abb59695562b3a1295a251dc97da700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1acf549bc9d2b61886bb99b852f82ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbb41234fd72fc1d84cadcaf14c8aaf.png)
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2 . 定义“等积数列”,在一个数列中,如果每一项与它的后一项的积都为同一个常数,那么这个数列叫做等积数列,这个常数叫做该数列的公积.已知数列
是等积数列且a1=2,前21项的和为62,则这个数列的公积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
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名校
3 . 已知项数为
的数列
为递增数列,且满足
,若
,且
,则称
为
的“伴随数列”.
(1)数列
是否存在“伴随数列”,若存在,写出其“伴随数列”若不存在,请说明理由;
(2)若
为
的“伴随数列",证明:
;
(3)已知数列
存在“伴随数列
,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982af54633665d2ce880c1ddffa5f557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad1fbb3a6370e293d2908eb3e054de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2444587892c098c2d64c3b96db6e1897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ebc5304d7aac9ffbbbd0f0b91d3daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4660fd74b3f3df8036e78d59fab2f637.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f74bd1b8f7484f22f4b09fe9de24986.png)
(3)已知数列
![](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/e934e1623c0064db4ab5cfcf1ac706be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-12-08更新
|
463次组卷
|
4卷引用:专题05 《数列》中的解答题压轴题(2)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
(已下线)专题05 《数列》中的解答题压轴题(2)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)(已下线)考向17 数列新定义-备战2022年高考数学一轮复习考点微专题(上海专用)上海市洋泾中学2021届高三上学期期中数学试题(已下线)第四章 数列单元测试(提升卷)-2020-2021学年高二数学新教材单元双测卷(人教A版2019选择性必修第二册)
4 . 已知数列
满足
,
,
,给出下列两个命题,则( )
命题①:对任意
和
,均有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292e11f3e831b2ffefde42cd7f0156c9.png)
命题②:存在
和
,使得当
时,均有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977a5131c8793ef76fa93a7c573274b2.png)
注:
和
分别表示
与
中的较大和较小者.
![](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/f108d4cbb79fbc793f2dfc9209b9436d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a986ebd55f4cb30cd94b82890b192810.png)
命题①:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc3060ffe6362f028798f1a2a4cdc7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292e11f3e831b2ffefde42cd7f0156c9.png)
命题②:存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a949b947e9961d4d68bfeb4e24ef40f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856b137a34d2d5b20671b7a3c7a29606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977a5131c8793ef76fa93a7c573274b2.png)
注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9d48e670be1ddbfee3738824a7eccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6323f3d42a8c329f1231a4183cca21c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.①正确,②正确 | B.①正确,②错误 |
C.①错误,②正确 | D.①错误,②错误 |
您最近一年使用:0次
2020-07-04更新
|
505次组卷
|
5卷引用:专题03 《数列》中的压轴题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
(已下线)专题03 《数列》中的压轴题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)(已下线)专题17 数学中的新定义问题-2021年高考冲刺之二轮专题精讲精析(已下线)第4章 数列(培优卷)-2021-2022学年高二数学新教材单元双测卷(苏教版2019选择性必修第一册)(已下线)【练】专题5 分段数列问题浙江省宁波市镇海中学2020届高三下学期5月高考仿真测试数学试题
5 . 已知数列
满足
(
为常数),则称
为等比差数列,
叫做公比差,若
是以
为公比差的等比差数列,其中
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b82c4956e466b83cac15892cfd1a75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cefeddf71dca8ae824328df3f0e5e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023高二上·江苏·专题练习
解题方法
6 . 已知无穷数列A:
,
满足:①
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed39e20a9dbb75b4b21260d27df85b90.png)
且
;②
,设
为
所能取到的最大值,并记数列
:
,
,….
(1)若数列A为等差数列且
,求其公差d;
(2)若
,求
的值;
(3)若
,
,求数列
的前100项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c990e50aad1de332b6f9894634e6acfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed39e20a9dbb75b4b21260d27df85b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eab47e3541d23a4cacac915d4384e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a49997086be2e13a271a4a7b1d4c399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9a668c71d17815323b7ec482fd2cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d00457e8d086f28ea1b24bd880c9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f766f204cf98d973ad5abe03b235e95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398ba56f5a708d2d85a02320e1a389d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8c641c42b6cd7f44c477bbe5761a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7488ed7332650aa2bc908edbd38c05e8.png)
(1)若数列A为等差数列且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7104dd8a81267b6c15ceedcefccfa20.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398ba56f5a708d2d85a02320e1a389d.png)
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7 . 设
是实数,
是整数,若
,则称
是数轴上与
最接近的整数.
(1)数列
的通项为
,且对任意的正整数
,
是数轴上与
最接近的整数,写出一个满足条件的数列
的前三项;
(2)数列
的通项公式为
,其前
项和为
,求证:整数
是数轴上与实数
最接近的整数;
(3)
是首项为
,公比为
的等比数列的前
项和,
是数轴上与
最接近的正整数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5030b4c9e28df695266e5d9578e0365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80c1ed7b10ac7ca1cd81cdd39a8fcc0.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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b0cfe24f4698eaed9c426b24b4c9f69.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef5f36035455d7934efd8ffd671efc4.png)
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8 . 定义:对于一个项数为
的数列
,若存在
且
,使得数列
的前
项和与剩下项的和相等(若仅为1项,则和为该项本身),我们称该数列是“等和数列”例如:因为3=2+1,所以数列3,2,1是“等和数列”.请解答以下问题:
(1)数列
是“等和数列”,求实数
的值;
(2)设数列
通项公式为
,且共有
项,证明:
不是等和数列;
(3)项数为
的等差数列
的前
项和为
,求证:
是“等和数列”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdcd07be0a24101e784b628d46ec90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b6d151d3f864bae873987f6db9327a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfae43a1ea1f5f3a031d224ac61a5f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca2c6eaa1e1c1f4c85e35b46e30b7c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b933d363f5b85a6b4110c9ef030c56a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)项数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378397148dc9a98bb9109154a551ced5.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/f899bd706e363ec439acbd0bea356209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
9 . 已知项数为
的数列
满足
,若对任意的
,
至少有一个是数列
中的项,则称数列
具有性质
.
(Ⅰ)判断数列0,2,4,8是否具有性质P,并说明理由;
(Ⅱ)设项数为10的数列
具有性质
,
,求
;
(Ⅲ)若数列
具有性质
,且不是等差数列,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d1d0738ec555e576eb02c21f1a72ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e278035794df8ee7a9a24919c6f4569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551f2c29c1dcacc35b4c5739d18ac7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e72ad2e72453867d089770c3f4c63da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(Ⅰ)判断数列0,2,4,8是否具有性质P,并说明理由;
(Ⅱ)设项数为10的数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee477282a1bab7d2e3d40054b615da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a208281f1803e31eb9f5fbfe8b4452.png)
(Ⅲ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
10 . 给定
个不同的数
、
、
、
、
,它的某一个排列
的前
项和为
,该排列
中满足
的
的最大值为
.记这
个不同数的所有排列对应的
之和为
.
(1)若
,求
;
(2)若
,
.
①证明:对任意的排列
,都不存在
使得
;
②求
(用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc3ad745dbae1a4473f904218a3cdf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5c47d88500eefb44873f5aba3ece4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0a9523f2084cf17b8656c11ab1d95e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bed86bdc6b99d071c08bb0ebd74155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a86b96291e5f17ead2c677691d7eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a86b96291e5f17ead2c677691d7eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155c5f3a5c55e0c95191c5a893f63062.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da6b7907193b6a8b646d6e307d7f963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada32feac648a845a4df365354cd196e.png)
①证明:对任意的排列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5c47d88500eefb44873f5aba3ece4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c918bd6f8aa5176a5138a1045835c957.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2020-05-09更新
|
303次组卷
|
4卷引用:预测11 计数原理-【临门一脚】2020年高考数学三轮冲刺过关(江苏专用)
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