解题方法
1 . 一般地,设函数
的定义域为D,如果对D内的任意一个x,都有
,且
,则称
为倒函数.请根据上述定义回答下列问题:
(1)已知
,
,判断
和
是不是倒函数;(不需要说明理由)
(2)若
是
上的倒函数,当
时,
,方程
是否有正整数解?并说明理由;
(3)若
是
上的倒函数,其函数值恒大于0,且在
上是增函数.设
,若
,求解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf26cb0612e3afd9fe70bbfa46975c51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfaa3716ef9b13f4bdfe0b234df9932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99eaeb2ab68a49074d623ffca072fed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3153b46564e0d7c0e3e063fb209123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e2bf39bacfc020ab2ffafe341a9e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bc39061e1fb75d8ab1fd5c3765a514.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781adcb4e434715fadaca92bfdd0e8a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3587ff064f9af01371279ab75d22116c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba1af9c1edca146b2bf2f1e43b945fc.png)
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2 . 已知
,
(
且
).
(1)求
的值;
(2)若
,求函数
的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ed6aae8b8d86df65aa0431359103ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ef41a5b1dca0d656501523ee58c504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e536766294135e563f816d893639b1ff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1218eda19f74a1ed50ab106265c6621f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ca3c53d481697331319132d2a8096a.png)
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解题方法
3 . 已知函数
.
(1)求函数
的定义域;
(2)若函数
,求
的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2085b81472e3c607740596f141c2a4ec.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9396a737848eedcb56625b2cda4671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2023-02-17更新
|
310次组卷
|
2卷引用:湖南省郴州市2022-2023学年高一上学期期末教学质量监测数学试题
名校
4 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f23b10ff433bb64060151cfc68c246e.png)
(1)求函数
的单调递减区间;
(2)求函数
的零点;
(3)若不等式
在
时恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8724935934ef8c814aa94058fa5989f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f23b10ff433bb64060151cfc68c246e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46b1a9b16a85150670db955a56eee77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0a5133b8460df6c46da0e44051e2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-17更新
|
393次组卷
|
2卷引用:湖南省永州市2022-2023学年高一上学期期末数学试题
名校
解题方法
5 . 对于函数
,若存在
,使
成立,则称
为
的不动点.已知函数
,求:
(1)当
时,求函数
的不动点;
(2)若对任意实数
,函数
恒有两个相异的不动点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86a669af7c0b585fca3258a5dde7966.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da67075d5f20954afe0232112e159ac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-02-10更新
|
50次组卷
|
2卷引用:湖南省彬州市安仁县第一中学2022-2023学年高一上学期第七次月考数学试题
解题方法
6 . 已知函数
,其中
且
.
(1)求函数
的零点;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0473d5ff2ca25833329ef6a6d6321b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467a0ccab3ec87e46dece50d31881596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-04更新
|
79次组卷
|
3卷引用:河南省学校联盟2022-2023学年高一上学期期中联考数学B试题
解题方法
7 . 给定函数
.
(1)求函数
的零点;
(2)证明:函数
在区间
上单调递增;
(3)若当
时,函数
的图象总在函数
图象的上方,求实数a的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b03909f8ea3237732f973d8a92690ad.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(3)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a203a74d5a74a3ba8bac4c48cd0a5d.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
.
(1)当a=b=-3时,求函数
的零点;
(2)对任意b<-1,函数
恒有两个不同的零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71065e6dc7373a43ae38e2f30427475c.png)
(1)当a=b=-3时,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意b<-1,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2023-01-16更新
|
251次组卷
|
4卷引用:吉林省长春市第五中学2022-2023学年高一上学期期末数学试题
吉林省长春市第五中学2022-2023学年高一上学期期末数学试题湖南省衡阳市衡阳县第四中学2022-2023学年高一平行班下学期开学模拟考试数学试题吉林省长春市汽车经济技术开发区第三中学2023-2024学年高一上学期期中考试数学试题(已下线)模块四 专题5 大题分类练(函数的应用)基础夯实练(人教A)
解题方法
9 . 已知指数函数
在区间
上的最大值与最小值之和等于12.
(1)求
的表达式:
(2)若函数
是奇函数,当
时,
.试求函数
的表达式,并求此函数的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b405d264a106ff8c483dd875c607e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caea7299a8adaf3aaee1aedb1036417b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
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10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3bb4514e183a06f03b51f1e1014c99.png)
.
(1)当
时,求函数
的零点;
(2)若
,求
在区间
上的最大值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3bb4514e183a06f03b51f1e1014c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6999cc41d0de41c4114f4adda1952ca.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
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