1 . 数列
的各项均为整数,满足:
,且
,其中
.
(1)若
,写出所有满足条件的数列
;
(2)求
的值;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c443dd1ce0f02cae28a35d69816031a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae17052168f340cb0757dc1ec0959489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65560724cdbf1a53160359333bba73b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9efeb4455e30293d412938eeea85d5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2309691b0e1b023bcb8d485cce6f1721.png)
您最近一年使用:0次
2020-03-12更新
|
424次组卷
|
2卷引用:2019届北京市一零一中学高三下学期月考(三)数学(理)试题
解题方法
2 . 在数列
中,若
(
,
,
为常数),则称
为“平方等差数列”.
(Ⅰ)若数列
是“平方等差数列”,
,写出
的值;
(Ⅱ)如果一个公比为
的等比数列为“平方等差数列”,求证:
;
(Ⅲ)若一个“平方等差数列”
满足
,设数列
的前
项和为
.是否存在正整数
,使不等式
对一切
都成立?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcca101c64c174f1fcb326ca1e1ff93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b0d8ecf4955dfcb76ca3e896568b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8c29b297e3ec337c3139c2a1ebed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
(Ⅰ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f71f23b95dfda565fcb6e9d4e27b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d03592135fc636d2a4ee12b02b3e172.png)
(Ⅱ)如果一个公比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f6eb38c755ee7526f0cb5d7c911c83.png)
(Ⅲ)若一个“平方等差数列”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a426d8afd49a1ce1e8dddd2ea37498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9039db92df2a887c434e4535f5ebdc8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8071a075180edb12213ec79d3de00cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb26cd1601fe7e76e1e2dc0b4909324a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0df1071048082a12a808bd608848fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1561813bf940dd153981cb3f98684f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8c29b297e3ec337c3139c2a1ebed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0df1071048082a12a808bd608848fa.png)
您最近一年使用:0次
3 . 已知函数
的定义域为(0,+
),若
在(0,+
)上为增函数,则称
为“一阶比增函数”;若
在(0,+
)上为增函数,则称
为”二阶比增函数”.我们把所有“一阶比增函数”组成的集合记为
1,所有“二阶比增函数”组成的集合记为
2.
(1)已知函数
,若
∈
1,求实数
的取值范围,并证明你的结论;
(2)已知0<a<b<c,
∈
1且
的部分函数值由下表给出:
求证:
;
(3)定义集合
,且存在常数k,使得任取x∈(0,+
),
<k},请问:是否存在常数M,使得任意的
∈
,任意的x∈(0,+
),有
<M成立?若存在,求出M的最小值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a27e72b96bc7af66c7472a9d7370e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e82cc461b9607e08a8b31597f6d26df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a27e72b96bc7af66c7472a9d7370e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b581dba9cddfa758eb3a030fcc9de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a27e72b96bc7af66c7472a9d7370e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843a1dd73fb90053eeb8f5d014f9c0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)已知0<a<b<c,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | t | 4 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0804b72b083963cfb022c1d3d45e758.png)
(3)定义集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951068950ea1e02576e11df1d43de9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a27e72b96bc7af66c7472a9d7370e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f5817ab7b88e9d8a83dd086ffdb3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a27e72b96bc7af66c7472a9d7370e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
4 . 现有一组互不相同且从小到大排列的数据:
,其中
.为提取反映数据间差异程度的某种指标,今对其进行如下加工:
记
,作函数
,使其图象为逐点依次连接点
的折线.
(1)求
和
的值;
(2)设
的斜率为
,判断
的大小关系;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82fb4cf459841e547e2d358d392abc0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c8d0474f7d81ef8dbefaacfd5afe7c.png)
记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184ab0d79c05f5ca0254518f669090bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39122971f02da2ac15fff63e55458178.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202f3247f015783652c3b80fb5759f57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef9ee0b2b2282c2be75fa875fac18fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90515707a364861cc94ebb7b0d9c5a15.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe872a9bad3fc80fcfa5a10cbcd3e89.png)
您最近一年使用:0次
名校
解题方法
5 . 已知数列
的前
项和为
,且满足
,
.设
.
(1)求
的通项公式;
(2)猜测
与
的大小关系并证明.
![](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/47d1e3f64e8d2589e61a54c3753bb269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb26afa639659d1cf754acc5c8e9269.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)猜测
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
您最近一年使用:0次
11-12高三上·北京东城·期末
6 . 已知集合
中的元素都是正整数,且
,对任意的
,且
,有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4809e8caab317fdff7a4ee3295ca671f.png)
(I)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa3c500d6e62a46f3dccf0099e806f4.png)
(II)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d40709a5e8d31d0dde84226dd12bf47.png)
(III)对于
,试给出一个满足条件的集合A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea7fcdb5423c1c8c032a3efcf245682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3301017a56b4427b6fab492f63b86d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e13a814f8e081078dcf3788177affcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11a069688e4c797fcf527eab15afa82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4809e8caab317fdff7a4ee3295ca671f.png)
(I)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa3c500d6e62a46f3dccf0099e806f4.png)
(II)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d40709a5e8d31d0dde84226dd12bf47.png)
(III)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294250dbd576bff3da0a1456cb9a88a5.png)
您最近一年使用:0次
7 . 已知集合
对于
,
,定义A与B的差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d3cda07e85dcc0f0abdd4009033185.png)
A与B之间的距离为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e27c2552f93678beed8a2da09d9f82c.png)
(Ⅰ)证明:
,且
;
(Ⅱ)证明:
三个数中至少有一个是偶数
(Ⅲ) 设P
,P中有m(m≥2)个元素,记P中所有两元素间距离的平均值为
(P).
证明:
(P)≤
.
(考生务必将答案答在答题卡上,在试卷上作答无效)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6a56fba87eb11270936ec057e58145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9247eb1841878ba0f36a717a7c6f4d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cccbf2256857847034bdd6e0bedcdd4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d3cda07e85dcc0f0abdd4009033185.png)
A与B之间的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e27c2552f93678beed8a2da09d9f82c.png)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6617cee7f47ed6bb6d0291a8e75473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70958c6e20ee298ce93e7eb4434a9206.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e6deac71f097fe2ae7121691ac67e4.png)
(Ⅲ) 设P
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d57f40f7df91c9fc7992670d8d4bec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92751d41a1ec61f309b6a3f6032b731e.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92751d41a1ec61f309b6a3f6032b731e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8402e5be50a188507a4feb16ed56ea4d.png)
(考生务必将答案答在答题卡上,在试卷上作答无效)
您最近一年使用:0次
2016-11-30更新
|
553次组卷
|
4卷引用:2010年高考试题北京(理科)卷数学试题
2010年高考试题北京(理科)卷数学试题北京市第一七一中学2021-2022学年高二上学期数学期中调研试题(已下线)专题16 数列新定义题的解法 微点1 数列新定义题的解法(一)(已下线)第五篇 向量与几何 专题19 抽象距离 微点2 抽象距离——曼哈顿距离(二)