解题方法
1 . 求所有的
,使
对
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e93438d2a1d82963d4e81fd74cab18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
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2 . 已知二次函数的最小值为
,且
是其一个零点,
都有
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09062390f939143073dbe8474ccd8cc9.png)
(3)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa756e2275e742607eb83da311d788ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
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3 . 对于定义域为
的函数
,区间
。若满足条件:使
在区间
上的值域为
,则把
称为
上的闭函数.若满足条件:存在一个常数
,对于任意
,如果
,那么
,则把
称为
上的压缩函数.
(1)已知函数
是区间
上的压缩函数,请写出一个满足条件的区间
,并给出证明;
(2)给定常数
,以及关于
的函数
,是否存在实数
,
,使
是区间
上的闭函数,若存在,请求出a,b的值,若不存在,请说明理由;
(3)函数
是区间
上的闭函数,且是
上的压缩函数,求满足题意的函数
在
上的一个解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31b14d5b4da0298a7dea660b03d1066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952572e5cf5719e96e12e459418a336b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243a45670e2b2fe44496d3244ed5a68d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f4e3f82bb9fa550b238f2661322391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec84404bbf6cf4a9d992e1760dcfdd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1ac49b4139636fb1809fe970b23a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1ac49b4139636fb1809fe970b23a87.png)
(2)给定常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a6e51f16456ca04a55f19fc5dcc368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9fcab2886322d40bb5b52d997984fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
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名校
4 . 已知函数
(
为常数),若1为函数
的零点.
(1)求
的值;
(2)证明函数
在
上是单调增函数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c60a3e5b9aab47289c167de2bca24b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
您最近一年使用:0次
2023-02-25更新
|
164次组卷
|
2卷引用:河南省驻马店树人高级中学2023届高三下学期高考模拟三(艺术)数学试卷
5 . 已知关于x的方程
的解均为整数,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8d6b64f14c7dbdc4878e95377fd78d.png)
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6 . 已知函数
与
.
(1)若
与
有相同的零点,求
的值;
(2)若
对
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d541211073469c92f2c8636b090128d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec7b24746f14106fe4e941614456ff.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef849152f5509a13bdb8c2d5b0694c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-01-13更新
|
840次组卷
|
3卷引用:专题03E函数解答题
专题03E函数解答题北京市普通高中2021-2022学年高二第二次学业水平合格性考试数学试题(已下线)专题4.10 函数的应用(二)(重难点题型检测)-2022-2023学年高一数学举一反三系列(人教A版2019必修第一册)
2021高三·全国·专题练习
7 . 已知定义在R上的函数
存在零点,且对任意
都满足
,若关于x的方程
恰有三个不同的根,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8697b29dfd72dcc54f277b3b7f5467c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a58b03bdb742c31c2da0045583c9dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582e5529b18a8583d39d36e91686a696.png)
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名校
8 . 已知函数
(
且
),
为定义在
上的奇函数,且
.
(1)求
的解析式;
(2)若函数
有零点,求
的取值范围;
(3)若
,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec55e2299b1886acb0c3ec1a6aec31e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0e5e3f3477931e7c15cf609b422410.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c12ddbcc3d35869c0192354e3b60482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a54d44b14785d095c2cb47d7d7ce446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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9 . 解方程组
(x、y、z是未知数,且a、b、c互不相等)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dcb9c26a2af118532e20c7a6b9aa5dc.png)
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10 . 求作一个一元三次方程,使它的三根分别是方程
三根的倒数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fad574419f4f92d1eaa401a787fe78.png)
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