已知函数
是实数集
上的函数,且
,当
时,
.
(1)求
的周期.
(2)求
时,函数
的表达式.
(3)若关于
的方程
在区间
上恰有4个解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6feb9d08e326c2d7fcf0579395d863b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdf5836c5d07c3ab97b7334953799c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108f62d9f5264843538f5be227ad19f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83510b5272411e990a59d100c7817e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba52c6db607d296dc79e4e30ae00545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2021-12-10 10:39:12
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】函数
的定义域关于原点对称,但不包括数0,对定义域中的任意实数
,在定义域中存在
使
,
,且满足以下3个条件:
(1)
是
定义域中的数,
,则
;
(2)
,(
是一个正常数);
(3)当
时,
.
证明:(1)
是奇函数;
(2)
是周期函数,并求出其周期;
(3)
在
内为减函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd028447f29935835db4e3aafc54dcd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de175251f4542ac12e81405fc5ad074e.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de175251f4542ac12e81405fc5ad074e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b8532e1352833824ce93be53d896d6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb04d514baf56eec084671b88898770b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441145ab6423aa3155c2d56f42ac8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
证明:(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb3fd46975763046c214db1ed22610b.png)
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(0.65)
名校
解题方法
【推荐2】设
是定义在
上的奇函数,且对任意实数
,恒有
.当
时,
.
(1)当
时,求
的解析式;
(2)计算
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d78dec1c1e00ec02d7bdaf76ef8901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa55e6686999dc6dcceb4256468909ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad814089e37543b2f547af9ae75b6dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1507d4e901a9e3aae441609e6b8222.png)
您最近一年使用:0次
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真题
【推荐1】已知函数
.
(1)若
,求
的取值范围;
(2)若
是以2为周期的偶函数,且当
时,有
,求函数![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/afa3a205d3ec408d9ece9153ddb78eb4.png?resizew=60)
的反函数.
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/4b70ce4ec1524c3086e01f05b76a5bd7.png?resizew=104)
(1)若
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/643a188d65fe416795dcd9f694783d0f.png?resizew=155)
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/da70a2c086d941e3b1489ef78df45f87.png?resizew=13)
(2)若
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/3633a337f4e24d9893c2c823df092892.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/7abb66859f9140dcbcd46ced6cbd12bd.png?resizew=59)
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/4fda1cd7ef194ec0b6010dca3224ffdf.png?resizew=81)
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/afa3a205d3ec408d9ece9153ddb78eb4.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2012/6/15/1570887624867840/1570887630381056/STEM/0ba7f779de5d468daa4f7823bed85321.png?resizew=69)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
解题方法
【推荐2】设
是定义在
上的奇函数,且对任意实数
,恒有
,当
时,
,画出
在区间
上的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d78dec1c1e00ec02d7bdaf76ef8901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3262781afb71e9dffc0b7fa1fe280cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59583f60710fc5ee4404593a1497513d.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
解题方法
【推荐1】已知函数
是定义在R上的偶函数,当
时,
,现已画出函数
在y轴右侧的图象,如图所示.
![](https://img.xkw.com/dksih/QBM/2020/11/20/2597025236942848/2597132015960064/STEM/d635a446b71242fd80c9459062a80fdf.png?resizew=242)
(1)画出函数
在y轴左侧的图象,根据图象写出函数
在R上的单调区间;
(2)求函数
在R上的解析式;
(3)已知方程
有且只有两个不等实根,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f76cb639dc4ce8ed42b2c87cf93555b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://img.xkw.com/dksih/QBM/2020/11/20/2597025236942848/2597132015960064/STEM/d635a446b71242fd80c9459062a80fdf.png?resizew=242)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)已知方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31bc0c34811edba74dae3fcaed8f577.png)
您最近一年使用:0次
解答题-问答题
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(0.65)
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解题方法
【推荐2】已知函数
=ax2-2x+b.
(1)若f(1)=0,且
有两个零点,求a的取值范围.
(2)是否存在正实数a,b,使得
在区间[0,2]上的值域为[0,1]?若存在,求a,b的所有值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)若f(1)=0,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在正实数a,b,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐3】已知函数
为偶函数.
(1)求k的值;
(2)若方程
有且只有一个根,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b7fe81461bbd1fedcb4cf79d48b3a4.png)
(1)求k的值;
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b9c135f19f8a508988216438e93538.png)
您最近一年使用:0次