真题
1 . 设函数
(
,且
,
)
(1)当
时,求
的展开式中二项式系数最大的项;
(2)对任意的实数
,证明
(
是
的导函数);
(3)是否存在
,使得
恒成立?若存在,试证明你的结论并求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69438543e3a9928c1f2295262f6579c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c50fb5615e36df436d747356b00d78.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f71935797074e889f15a62ac370a9c1.png)
(2)对任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a0ffe57e983469b590914f5ce06d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c38f3baf9a34265fbdb5c65dd1664d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b5fb0bc5207a915464ef8a5f40f5e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知函数
,设曲线
在点
处的切线与x轴的交点为
,其中
为正实数.
(1)用
表示
;
(2)求证:对一切正整数n,
的充要条件是
;
(3)若
,记
证明数列
成等比数列,并求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7b0deaff280ebbee0f91be5acd20d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641fec779880f75fa8ee6782f3350402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeb4aa8a3ca0261e0161fd7fa8bde97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002f56900c2924bfd79fc3865b0a02e.png)
(2)求证:对一切正整数n,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b3c80e774501722f46f97800f1d400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3fd5fd833041ae95d8b7f8d2897e35.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4223bd6ee8f82d59d244371fbcddc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfe65f891c54780bcf1ed6a9f8a0f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
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2022-11-23更新
|
1066次组卷
|
3卷引用:2007年普通高等学校招生考试数学(理)试题(四川卷)
真题
解题方法
3 . 已知函数
.设数列
满足
,
,数列
满足
,
.
(1)用数学归纳法证明:
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc3b27e71b72f2b49753a222d7c4b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edd52cb8d2c6a209590b59c61de68d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af75c5fc07fdedd4f3399413f7c4c44e.png)
(1)用数学归纳法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b431dd05fdb0a36bbb29c8f1959b9ea.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2e4bf053d2425d369f7c6d1cf78a68.png)
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4 . 在数列
中,若
是正整数,且
,则称
为“绝对差数列”.
(1)举出一个前五项不为零的“绝对差数列”(只要求写出前十项):
(2)若“绝对差数列”
中,
,数列
满足
,分别判断当
时,
与
的极限是否存在,如果存在,求出其极限值;
(3)证明:任何“绝对差数列”中总含有无穷多个为零的项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a1202076e1ec7ef9e07c6c2297fa8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)举出一个前五项不为零的“绝对差数列”(只要求写出前十项):
(2)若“绝对差数列”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4303f4fde19effaaa107ef52c82c4641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4b33a462fdfa21630f27433bc29f1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19893fdb67307d35a9115ef4f3f1202a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(3)证明:任何“绝对差数列”中总含有无穷多个为零的项.
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真题
解题方法
5 . 已知各项均为正数的数列
满足:
,且
.
(1)求数列
的通项公式;
(2)设
,求
,并确定最小正整数n,使
为整数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af491c23f6cfc8b8746ad9f875922c51.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6684cf90b338961dc3f9ef8df1f7a53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d30d6eecf80cb8a09ed2e585a94ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d30d6eecf80cb8a09ed2e585a94ea9.png)
您最近一年使用:0次
2022-11-12更新
|
1135次组卷
|
2卷引用:2006 年普通高等学校招生考试数学(文)试题(江西卷)
6 . 数列
满足
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5496f010528fc851ee29e7619cfc9bc9.png)
(1)用数学归纳法证明:
;
(2)已知不等式
对
成立,证明:
,其中无理数
….
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5496f010528fc851ee29e7619cfc9bc9.png)
(1)用数学归纳法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7bb3e39c55838e93fd89a6fa4ba6bc0.png)
(2)已知不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832f82ceb27bd5557bab2308b2472af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fb7fa95e1159cc0ff639d133c71aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7af1a8acfab37fc212d749a9e9b146.png)
您最近一年使用:0次
7 . 如图,对每个正整数n,
是抛物线
上的点,过焦点F的直线
交抛物线于另一点
.
;
(2)取
,并记
为抛物线上分别以
与
为切点的两条切线的交点.试证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c5b2ecf3d4a067272790f360b5d05d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e808c00d132c5833c3875b6274908f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a3765f6f6b85240bc9b1a83697841a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62cde0ab292499667e6e29933041746b.png)
(2)取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1c1eb1e62cbc94fe79d1fe5791395d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f64fa5595a26602abc4d2019af5a00.png)
您最近一年使用:0次
2022-11-12更新
|
821次组卷
|
3卷引用:2006年普通高等学校招生考试数学(文)试题(重庆卷)
8 .
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18adf5bdc136dd5ce21ff692ab153362.png)
A.3 | B.![]() | C.![]() | D.6 |
您最近一年使用:0次
真题
解题方法
9 . 设数列
满足:
,
,证明:
为等差数列的充分必要条件是
为等差数列且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2249690697d2901e3baf1ff602c366cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc4124f53a0ebdcc328e5ca6404b6ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee1767ef20c21af6baaab122f4c834e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64975df9b6b1c5f116edb3d009cca72f.png)
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真题
解题方法
10 . 已知
是曲线
上的点,
,
是数列
的前
项和,且满足
,
,
.
(1)证明:数列
是常数数列;
(2)确定
的取值集合
,使
时,数列
是单调递增数列;
(3)证明:当
时,直线
的斜率随
单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53fcfca2a223425da57d1f24c98640dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.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/44e71b147dbef10ba4a9443348167b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa01f03fb074bff35b35e07047d11b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ec0b97655e6bd7004df04457c493ac.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951ae3104708a981076f51389885a499.png)
(2)确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ad43edf388c096e7704d92340bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ad43edf388c096e7704d92340bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91491440dcb994a89107c0e92134ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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