1 . 对于函数
、
、
,如果存在实数
使得
,那么称
为
、
的和谐函数.
(1)已知函数
,
,
,试判断
是否为
、
的和谐函数?并说明理由;
(2)已知
为函数
,
的和谐函数,其中
,若方程
在
上有解,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/a75b71c196c04f8ca7881c1d5154024a.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/435b420109634360890a6a6b73e4f196.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/048e378b91e14044921c108c95425acc.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/5b344916177e422895787b7ab26bc23b.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/1a744212517d4f18b0db77f10807a2a3.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/048e378b91e14044921c108c95425acc.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/a75b71c196c04f8ca7881c1d5154024a.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/435b420109634360890a6a6b73e4f196.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7303acc9daf5faca538e0d1959aa21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0151278285c9c6e5142e75f019622eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50458b5ebb49c61041546c40d97bbe0c.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/048e378b91e14044921c108c95425acc.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/a75b71c196c04f8ca7881c1d5154024a.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/435b420109634360890a6a6b73e4f196.png)
(2)已知
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/048e378b91e14044921c108c95425acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a898f3e34de9e2de02cdd572f4ebf6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f8e4e5260ae542277d880e7d90a732.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/6d5ed359c7cf44ddaa2b455765030a6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d455b31e55cff451b9613ce4a228e1e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14be2ca73bcbd6fc42c59b5a474de92.png)
![](https://img.xkw.com/dksih/QBM/2016/12/10/1579115717009408/1579115717533696/STEM/b3c7a5e4ac2245b78867578104242d8a.png)
您最近一年使用:0次
解题方法
2 . 已知函数
.
(1)用定义证明函数
在
上是增函数.
(2)判断函数
零点的个数.
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572501707964416/1572501713846272/STEM/717f8395b7f54cf09c8b493bc1118ee4.png)
(1)用定义证明函数
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572501707964416/1572501713846272/STEM/c481e7bd013f4541903bb5b7b44f0967.png)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572501707964416/1572501713846272/STEM/8423350e6dbb48bf966441d329b76cf7.png)
(2)判断函数
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572501707964416/1572501713846272/STEM/c481e7bd013f4541903bb5b7b44f0967.png)
您最近一年使用:0次
解题方法
3 . 已知函数
(
,且
),
.
(1)函数
的图象恒过定点A,求A点坐标;
(2)若函数
的图像过点
,证明:方程
在
上有唯一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791d213374e7656c14629d4466d5df6a.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/84150c16bbe9fca396a93976d2a9642d.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7362fa526a84b0ce2f5a2021dbc44399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8320d3365a905669e28c77c9cd46f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
您最近一年使用:0次
2016-12-03更新
|
966次组卷
|
2卷引用:2015-2016学年广东省深圳市高中高一上学期期中数学试卷
11-12高一上·广东佛山·期中
名校
4 . 函数
和
的图像的示意图如图所示, 两函数的图像在第一象限只有两个交点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fc6536ac9fb81a1faaa8b3ec5fa65d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/5023cf00-86b3-42b7-a925-385650444b31.png?resizew=155)
(1)请指出示意图中曲线
分别对应哪一个函数;
(2)比较
的大小,并按从小到大的顺序排列;
(3)设函数
,则函数
的两个零点为
,如果
,其中
为整数,指出
的值,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee6881a170f6ef9ed5c133b95c2f448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfdccf88b4dd13ddcf13373b71c5034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fc6536ac9fb81a1faaa8b3ec5fa65d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/5023cf00-86b3-42b7-a925-385650444b31.png?resizew=155)
(1)请指出示意图中曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924e25b4de6b5e90d91558e5249d9478.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021075457b72448f29e792b3a83c01a6.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca4be345087f993a4078e16c16608e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74314814cdc6fb803abb4692458af131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8275416d82b8b0f41408ad8a2ae90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
您最近一年使用:0次
2016-12-01更新
|
1162次组卷
|
5卷引用:2011年广东省佛山一中高一上学期期中考试数学
(已下线)2011年广东省佛山一中高一上学期期中考试数学吉林省吉化第一高级中学校2019-2020学年高一上学期期中数学试题吉林省长春市德惠市实验中学、前郭五中等九校2019-2020学年高一上学期期中数学试题吉林省公主岭市第一中学2019—2020学年高一上学期期中数学理科试卷(已下线)建立数学模型解决实际问题-2020-2021高中数学新教材配套提升训练(人教A版必修第一册)
2011·广东广州·一模
名校
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
满足
,对于任意
R都有
,且
,令
.
(1)求函数
的表达式;
(2)求函数
的单调区间;
(3)研究函数
在区间
上的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5bb89c3ad435f1ef59307b174105ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44c45ef0334070fc149b452dee26ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8559250e7a91f36fe7a8ec6ce6a1550f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c89c7f9879e66fcefc43ce384ff3615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cd058ecddd80deb7cc3f060cd0f064.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)研究函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
您最近一年使用:0次