已知定义在
上的函数
的单增区间为
,且图象过点
.
(1)求函数
的解析式;
(2)对任意的
,存在常数
使得
成立,求整数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80027540415bd2b98c9be19e21b5f8d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48befa5d90fafd8bfdb6c90fd241ebfb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4084ac63b3e7d8b5055fc6469b1b6068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd92c8b9c8b753b0be96c22671ab754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7b7228f79a7504c59a9452d89f5eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
更新时间:2020-02-29 17:39:30
|
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解答题-证明题
|
较难
(0.4)
解题方法
【推荐1】已知三个函数
其中第二个函数和第三个函数中的
为同一个常数,且
,它们各自的最小值恰好是方程
的三个根.
(1)求证:
;
(2)设
是函数
的两个极值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d432897d992407217d78d7df503f12e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac603c0b3d1d7fd42bd50222b6ab94d0.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6904b477d75c2a115f0c7217abb97d86.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c43fec84626d61d08f2ab0ed2ac4cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269dce1ae3396d2afc82a91dc6f97ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9dd56551121a5b88be4dc6910c9ec0.png)
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解答题-证明题
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较难
(0.4)
【推荐2】已知数列
为等差数列,且
,
.数列
是各项均为正数的等比数列,
,且对任意正整数
都有
成立.
(1)求数列
、
的通项公式;
(2)求证:数列
中有无穷多项在数列
中;
(3)是否存在二次函数
和实数
,使得
为数列
中连续4项?若存在,请写出一个满足条件的
的解析式和对应的实数a的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1928c254cfada1f75a5cd1e34db5a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3687914c2c20e839427fd79dc6a12e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b056a90a2751f04ba5fff3dc5c1d0674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9fbda56cac489ae7f42807cd56191d.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(3)是否存在二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eec8068b4cdf83155e5112be0d2a6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解答题-问答题
|
较难
(0.4)
真题
解题方法
【推荐1】
,其a数,n是任意自然数且
.
(1)如果
当
时有意义,求a的取值范围;
(2)如果
,证明:
当
时成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4872267da93aa02ebf13bd5694d5bc03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17732a53955dd511b5ad8b6403262040.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a09145206ea1060dbba927a9d12569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27833169f63937f6cd029ec1f058cf34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
您最近一年使用:0次
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较难
(0.4)
【推荐2】已知函数
,(
且
)
(1)当m=2时,解不等式
;
(2)若0<m<1,是否存在
,使
在
的值域为
?若存在,求出此时m的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095897564b2bb696f4cb3e8016b3fa01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
(1)当m=2时,解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(2)若0<m<1,是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d61c2a73aed7ffff74baa4f0460fb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa208c8bab34df3e76f87552abc985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58fc40baf2d581de2614b0d1867ef726.png)
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(0.4)
名校
【推荐1】已知
R.
(1)当
时,解不等式
;
(2)设
,若对任意
,函数
在区间
上的最大值与最小值的差不超过
,求
的取值范围.
(3)若关于
的方程
的解集中恰好有一个元素,求实数
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f8c25d9061d6bca7cdcde2d645d289.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16443926c89badae2361d1290e4781b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82dca4a0e082b5cbdb1beb6f4d1e2f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3ab1020fceb1158042671bf33ea64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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较难
(0.4)
【推荐2】已知函数
满足
.当
时,
.
(1)若
,求
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(2)当
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的取值范围.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2d4abbb1340326a943c908bf161f32.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58814a1b1d6ba7873c5703404e0cd5d7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497cc5c4e8cb7ade34649a94b5c4e7cd.png)
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(2)当
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您最近一年使用:0次