1 . 已知对于任意
,不等式
成立.
(1)求证:对于任意
,
;
(2)若
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7acf685429415347b90f8123c7aa65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9369b94589ea65fcd5454ac5e60e8a.png)
(1)求证:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7acf685429415347b90f8123c7aa65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f664254f80a773e078f31a2cf44774.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25ebf4e3bb6d8a08307e7893b8a8ece.png)
您最近一年使用:0次
2 . 已知递增数列
的前
项和为
,且满足
,
.
(1)求证:数列
为等差数列;
(2)试求所有的正整数
,使得
为整数;
(3)证明:
.
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50924b095b150187e33b96ef2f1a80d.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)试求所有的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3644a9e687b6447f961dab6e49e37c3e.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01e345a8629e25e3de6324e432c6166.png)
您最近一年使用:0次
2020高二·浙江·专题练习
名校
3 . 已知数列
满足
,点
在直线
上.数列
满足
,
(
且
).
(1)求
的通项公式;
(2)(i)求证:
(
且
);
(ii)求证:
.
![](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/b34501fddc49998ac2b35a61ae2f3bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a45290d1a0d7bef4d09f688e3b9f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd4a08aee671bb8723ce3cc064e7532e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)(i)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38a3dea35c3009d64598fe0b2726d7b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac69e6db1df13ed64756b4f391ae9fac.png)
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1f4f4b6d2a4d8312ca7f716f02e094.png)
您最近一年使用:0次
2020-01-05更新
|
720次组卷
|
3卷引用:重庆市外国语学校2019-2020学年高一下学期6月月考数学试题
4 . 已知函数
.
(1)当
时,证明:
;
(2)当
时,若
在
上为增函数,求
的取值范围;
(3)
,试比较
与
的大小,并进行证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f039d126ef3853bb60b1593c19f21226.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f42acea836df9ca7c237b52df778c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2aeda5c6f101566159dd4c460b943b2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e31cd64ffdc1c1e2f2728f7de59bc25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfaecd216156a20f80229dd48a10c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac657ea5bbf4b237a30e4074c76cc81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13889ae6ba70b83b85d3e13ea305fa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eac69d0722559c0a0dd9a74ab5d1276.png)
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5 . 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
解题方法
6 . 已知函数
,
,
,
,2,
.
(1)设
为等差数列,且前两项和
,求
的值;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e076d53e0fab96afda46ff7ac1689dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b153f1e6c092ffb6547a9d33d4ae63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0863cf59114f905e9ad3debc5572792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19215074e16c7288e853d336897bead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c3eae5bd9d232f44e5d3014b472b89.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
(
为自然对数的底数).
(1)求函数
的单调区间;
(2)当
时,若
对任意的
恒成立,求实数
的值;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14dee98f762932a2b717636a20306b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a90b936a01686cc776e994a1a69b5dc.png)
您最近一年使用:0次
2016-12-02更新
|
1475次组卷
|
6卷引用:重庆长寿中学2019届高三下学期开学摸底理科数学试题
8 . 存在实数a,使得对函数
定义域内的任意x,都有
成立,则称a为
g(x)的下界,若a为所有下界中最大的数,则称a为函数
的下确界.已知![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/c8cddf467eb64b66bd16c89df403352b.png)
且以
为边长可以构成三角形,则
的下确界为
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/9949bcf6d2814b8190bd5469c9c51625.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/d1b7f3429d6e495ba1f2bddc3e62de6a.png)
g(x)的下界,若a为所有下界中最大的数,则称a为函数
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/9df96ae7b173478ea7d4e1f48f6fc68c.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/c8cddf467eb64b66bd16c89df403352b.png)
且以
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/bca11573dedf4a46a97c9afb7d30c2d9.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572005849546752/1572005855248384/STEM/f2cdaf2ba86941aca3efd01b993b277b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
11-12高三下·重庆·阶段练习
解题方法
9 . 已知函数
,数列
满足
,
,
.
(1)求证:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b200b5986034ef2c1176a0b023f598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12b6df30b6c738af179594ac03ce449.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907c7557ddeaa1ddb0f510cec651183a.png)
您最近一年使用:0次
10-11高一·重庆江津·阶段练习
10 . 设函数
(
、
为实常数),已知不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a70b7436575335727426cd0d6d5685.png)
对一切
恒成立.定义数列
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54b0ff1bb7544815cb6faa28cfbcd82.png)
(I)求
、
的值;
(II)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63aaa178677e179fd17fb87877ccb38.png)
![](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/81a70b7436575335727426cd0d6d5685.png)
对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54b0ff1bb7544815cb6faa28cfbcd82.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(II)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886e940325d99ec7955ca7254a96edec.png)
您最近一年使用:0次