名校
1 . 特征根方程法是求一类特殊递推关系数列通项公式的重要方法.一般地,若数列
满足
,则数列
的通项公式可按以下步骤求解:①
对应的特征方程为
,该方程有两个不等实数根
;②令
,其中
,
为常数,利用
求出A,B,可得
的通项公式.已知数列
满足
.
(1)求数列
的通项公式;
(2)求满足不等式
的最小整数
的值;
(3)记数列
的所有项构成的集合为M,求证:
都不是
的元素.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c83c33db47349575441a66df8e482fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be482566ef26100659a298c27be608f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6376698bfe2d01afc84e1288fa023a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2893f9fc6d4cd75259ac80c0b08d07b1.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/df657f4a5c6bfaa631f891247d3c6bff.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/263c3c4038cfbbcb3e60d7f57cfaeb3c.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求满足不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9573c10366df20d32b50fe2e636c15b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)记数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faf7318f40512ee643a248b5f118621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解题方法
2 . 混沌现象普遍存在于自然界和数学模型中,比如天气预测、种群数量变化和天体运动等等,其中一维线段上的抛物线映射是混沌动力学中最基础应用最广泛的模型之一,假设在一个混沌系统中,用
来表示系统在第
个时刻的状态值,且该系统下一时刻的状态
满足
,
,其中
.
(1)当
时,若满足对
,有
,求
的通项公式;
(2)证明:当
时,
中不存在连续的三项构成等比数列;
(3)若
,
,记
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034983375860d2b404f6fbd7d40a44b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002f56900c2924bfd79fc3865b0a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc85a01f2a5b003d545aabd58658f430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5b159da139b50cde0d087f462aa4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cb047913c41b42b47ac00bf91f2e45.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8365233f341451598eb50525a1557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3d565c588f31510c613f32122778ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195fc747e2fc50cb6df2c844d51e4d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbbb97adee9c7cb6af553e1c8e2b047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c7636532d8414f52061bba28a1b9a3.png)
您最近一年使用:0次
3 . 已知数列
的前
项中最大的项记为
,则
叫做由
生成的“
数列”.
(1)若
,求
;
(2)若
,求
的前
项和
;
(3)若数列
都只有5项,
且
各项均不相同,求数列
的个数.
![](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/237a2beb5a43fb2e1e15ef496682cd43.png)
![](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/260f8cbc5b9173811130acf44baeb410.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1aff4632ac470ac7ff4722040d0df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6efb0a965ddedb06dc64ed8c366b02d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1c771dabad72dade2657ff07c66dba.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/c9c052a277358533cc12ed81016f641e.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686e637b2e8c8bf86b58eed2c6abab41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
名校
解题方法
4 . 若正实数数列
满足
,则称
是一个对数凸数列;若实数列
满足
,则称
是一个凸数列.已知
是一个对数凸数列,
.
(1)证明:
;
(2)若
,证明:
;
(3)若
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c162242a938a5a12decf95e793a38bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a77316e06c00a9086be642f7f590684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddb56942a7c324e61bf64f45182aac6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a77316e06c00a9086be642f7f590684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010baf415f792018ad9abd752e37b983.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7de869d778679e553d65c8feee7a0b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fae07f950aea5270e6b48fe2cedaaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e44bb3c3c56c02ae33d480b556fece.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e32b345649f33632c83903c6014dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac648580405ecaa29e91d45738a08af7.png)
您最近一年使用:0次
2024·全国·模拟预测
解题方法
5 . 用“夹逼法”可以估算
,比如可以用如下操作估算
:由于
,所以
,即
在2和3之间;进一步,由于
,且
,所以
在2.2和2.3之间;如法炮制,可以估算
在2.23和2.24之间…….如此下去,可以估算
不同精确度下的近似值,同时也可以确定与
最接近的整数值.如果用
表示最接近
的正整数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5252009b0b73442d0aa096175ccaf14f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ee0e24cf8966c345cc23580a5d1c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ffaf5232b03547381e61f5915ce819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c0553a710a4414401ca1cb4fbaee3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d6555c9c8ad22dc8933251824af46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5252009b0b73442d0aa096175ccaf14f.png)
您最近一年使用:0次
6 . 无穷数列
,
,…,
,…的定义如下:如果n是偶数,就对n尽可能多次地除以2,直到得出一个奇数,这个奇数就是
﹔如果n是奇数,就对
尽可能多次地除以2,直到得出一个奇数,这个奇数就是
.
(1)写出这个数列的前7项;
(2)如果
且
,求m,n的值;
(3)记
,
,求一个正整数n,满足
.
![](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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e19f7bfb0ee59fc93e6e822a0658af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(1)写出这个数列的前7项;
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564e60383b05d2e0ee94a733742ae424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb93a77f1677e8eb0e6e3d419d3217f.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695950fe16f7972182bd2d0864e12feb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0317b77cd356da2676220a79762c11dd.png)
您最近一年使用:0次
2024-05-20更新
|
2570次组卷
|
3卷引用:2024届广东省深圳市二模数学试题
名校
7 . 已知正实数
,
,
,且
,
,
,
为自然数,则满足
恒成立的
,
,
可以是( )
![](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/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7204ebb165d62bf4121ce3ae1b4406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2024-05-19更新
|
1738次组卷
|
3卷引用:浙江省天域全国名校协作体2023-2024学年高三二模数学试题
解题方法
8 . 有无穷多个首项均为1的等差数列,记第
个等差数列的第
项为
,公差为
.
(1)若
,求
的值;
(2)若
为给定的值,且对任意
有
,证明:存在实数
,满足
,
;
(3)若
为等比数列,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223ed9652852ca4d996fd1f20808df9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b406c1887760f545f692081c10ba409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a136f516c3b52ea996c04b9989903950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd1cd7f3915a51d747e2dde3a6bf34e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499d0df6a104a5afe4ced3e1881034d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347e9a064f8636e397ee17a74d09c62f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972023813dafd940c073ab3cf09b466d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec6fb9e0625b85be3103d317fbb0cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096acdd2d0ce16e1e45397ec5e365d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd66e00bc224b433dbde6ceeaca6740.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0815e67ba8580ad64a790ade2a9957.png)
您最近一年使用:0次
9 . 若项数均为
的两个数列
满足
,且集合
,则称数列
是一对“
项紧密数列”.设数列
是一对“4项紧密数列”,则这样的“4项紧密数列”有( )对.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432a8b1081ecb4a8c4943faad484541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54946204c502727ffaee3c0172d195a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f11437ef2c39a14cffb0d36c8d9c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
A.5 | B.6 | C.7 | D.8 |
您最近一年使用:0次
名校
解题方法
10 . 球面上的三个点,每两个点之间用大圆劣弧相连接,三弧所围成的球面部分称为球面三角形.半径为
的球面上有三点
,且
,则球面三角形
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b7c1356f8e66f93d414b2a91e87cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次