解题方法
1 . 已知二次函数
,一次函数
,其中
.
(1)若
且
.
①证明:函数
必有两个不同的零点;
②设函数
的图象与
的图象有两个交点,且交点横坐标分别为
,求
的取值范围;
(2)若
恒成立,求当
取最大值时,不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204696a289b1f47a176eb16c1cecf8b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a177a71f478503df316044a9b4f740cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baca30d4248a82988890bd032d159b25.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
①证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204696a289b1f47a176eb16c1cecf8b2.png)
②设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30006862446b5ec966b87c46962f778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c131ca013ebab4c2ff7e00b8b46a174.png)
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2 . 已知函数
.
(1)判断函数奇偶性并证明;
(2)设函数
,若函数
与
的图象没有公共点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf0b22404c387e52258b2fa70c6b49b.png)
(1)判断函数奇偶性并证明;
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5648353cf25c8c2ba22847cfb42feef2.png)
![](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/f0a532e15e232cb4b99a8d4d07c89575.png)
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3 . 已知函数
(
,
),函数
,若函数
(
)的图象与函数
,
的图象交点为
,
,且
,判断
与
的大小关系并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14a2156c6690b324f7929b3b3553970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c4473159277aed64ea96c4af087954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcf15c03495709c4d2134a0827e952d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](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/fbdf882b11c78944f7a5542f63c3be6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6032aee742b136f8ea08073426fcb2d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65140a17a736feda0db11881a24df5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b611d07da4d39956e502fd9730677e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ee135202f31b2631557f1dc547075e.png)
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名校
4 . 已知函数
.
(1)求
的定义域,并证明
的图象关于点
对称;
(2)若关于x的方程
有解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694ff3615f74ed484c9f2b6929ec4072.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
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2022-12-17更新
|
297次组卷
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5卷引用:安徽省皖北县中联盟2022-2023学年高一上学期12月联考数学试题
名校
5 . 对于函数
,若
,则称x为
的“不动点”;若
,则称x为
的“稳定点”.若函数
的“不动点”和“稳定点”的集合分别记为A和B,即
,
.
(1)求证:
;
(2)若
,函数
总存在不动点,求实数c的取值范围;
(3)若
,且
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e44284cb19805a584880a686ac3df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec6e3551a703676ea0dd20d538db32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30bf91f31613ce80bba22a49862db03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84fb76793cf9f354f574ad9b881f98a0.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ef395530f8dbf772e621d5f9956c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9dbe8188e8552968d94b6b10ae62aa7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ac3b503ea16f176802c92cca968d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d02e5de0c92487382f4b98376e9740.png)
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2022-11-12更新
|
641次组卷
|
5卷引用:安徽师范大学附属中学2022-2023学年高一上学期期中数学试题
解题方法
6 . 已知函数
.
(1)若
,证明:函数
有且仅有两个不同的零点;
(2)在(1)的条件下,设这两个零点分别为
.
(i)证明:
;
(ii)将以
为顶点的四边形
绕
轴旋转一周得到一个几何体,求该几何体体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4550072cd13e511a02246496caecc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0134a46f2f76b924127cb46ac939e322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7eb1c785d537dfa63a7427123ebf69.png)
(2)在(1)的条件下,设这两个零点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694c99143dcd6fdc8138efa03d0c3350.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f099f2a4f62930bebb7cc7597d9811e.png)
(ii)将以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1a41250a40e8557e43a7fc96afca04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
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名校
7 . 对于函数
,若
,则称x为
的“不动点”;若
,则称x为
的“稳定点”.函数
的“不动点”和“稳定点”的集合分别记为A和B,即
,
.
(1)求证:
;
(2)设
,若
,求集合B.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e44284cb19805a584880a686ac3df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec6e3551a703676ea0dd20d538db32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30bf91f31613ce80bba22a49862db03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84fb76793cf9f354f574ad9b881f98a0.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80027540415bd2b98c9be19e21b5f8d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9e1e23d799232a161911aa6ec19d80.png)
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2021-11-26更新
|
353次组卷
|
8卷引用:安徽省滁州市定远县民族中学2020-2021学年高一上学期11月月考数学试题
安徽省滁州市定远县民族中学2020-2021学年高一上学期11月月考数学试题苏教版(2019) 必修第一册 过关检测 第5章 5.1 函数的概念(已下线)5.1函数的概念与图象(备作业)-【上好课】2021-2022学年高一数学同步备课系列(苏教版2019必修第一册)(已下线)3.1.1函数的概念(同步练习)-【一堂好课】2021-2022学年高一数学上学期同步精品课堂(人教A版2019必修第一册) 人教B版(2019) 必修第一册 逆袭之路 第三章 3.1 函数的概念与性质 3.1.1 函数及其表示方法(已下线)5.1 函数的概念和图像-2022-2023学年高一数学《基础·重点·难点 》全面题型高分突破(苏教版2019必修第一册)(已下线)5.1 函数概念与图像(练习)-高一数学同步精品课堂(苏教版2019必修第一册)广东省东莞中学2023-2024学年高一上学期第一次段考数学试题
8 . 已知函数
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求证:函数
为定义域上的偶函数;
(2)若函数
的图象与函数
图象有交点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3536fe8307878a8c880b616f7e8021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a16a128d07b4d4232f79d013c14ad2.png)
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名校
9 . 已知
为奇函数,
为偶函数,且
.
(1)求函数
及
的解析式,并用函数单调性的定义证明:函数
在
上是减函数;
(2)若关于
的方程
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94ed64bf364c7bdf6c461fdbd5f6631.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4f509ae8c376c9f1dd8be62f933eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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