函数
,因其图像类似于汉字“囧”,故被称为“囧函数”,下列说法中正确的个数为( )
①函数
的定义域为
且
;②
;
③函数
的图像关于直线
对称;④当
时,
;
⑤方程
有四个不同的根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad6b4e7637324d814d7474f54951374.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0cc4eba3d8d14a7490eb26d0dceebf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5d99d95e399e916c03c64268989352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f5fb9e6341f6deed5079c9ab9ec814.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329fc41b05b207fd7d6033cc11eb477d.png)
⑤方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e53595d1651a7b9d15bc8c911db50.png)
A.3 | B.4 | C.5 | D.2 |
更新时间:2022-12-21 16:08:19
|
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单选题
|
适中
(0.65)
名校
解题方法
【推荐1】已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65714cd89cdf673ef9f7191104506db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c959ea776aa091130f6e38054d28ada6.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
【推荐2】设函数
的定义域为
,对于任意
,若所有点
构成一个正方形区域,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b92d52fd058067a5128ef2c7cea5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1144262e974ab3e8bbc128b40582f726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c8a69510a930b688b86f8c65ead478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.-1 | B.-2 | C.-3 | D.-4 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】奇函数
,
,当
时,
,则函数
的图为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aebf62d230cbee1781de6c1d73a7ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054775ba84117cafcf511ca8eeb5cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed2dd8a797d6da9c89e858aed9a7da9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】用
表示
三个数中的最小值.设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286002e6e8271e9b62843aa09ba0cb1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb15907b7892c2ec6eeaf33c9d8adee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
解题方法
【推荐1】已知正实数
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d40b1860ae26e257d4491dc6f7b88e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】已知定义在[﹣2,2]上的函数y=f(x)和y=g(x),其图象如图所示:给出下列四个命题:①方程f[g(x)]=0有且仅有6个根; ②方程f[f(x)]=0有且仅有5个根方程;③g[g(x)]=0有且仅有3个根 ;④方程g[f(x)]=0有且仅有4个根,其中正确命题的序号( )
![](https://img.xkw.com/dksih/QBM/2020/11/16/2594430578556928/2598388575641600/STEM/e23cc13b43a8449695e66816f6dfdb2f.png?resizew=358)
![](https://img.xkw.com/dksih/QBM/2020/11/16/2594430578556928/2598388575641600/STEM/e23cc13b43a8449695e66816f6dfdb2f.png?resizew=358)
A.①②③ | B.②③④ | C.①②④ | D.①③④ |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐1】设函数
是定义在
上的函数,且
,当
,
,则在区间
内,关于x的方程
解的个数为( )
![](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/b4898d3c1a1ffe28f013fcd1f6a3cc3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44853d7c32515674cfe4a8599e591725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1911b1596c64153f40bab1e7cabe33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f36a70acf0b00bcfec369c2c1fd628c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a85c07c2f3ca58443608a5ded6f659d.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】已知偶函数
满足
,且当
时,
,则关于
的方程
在
上根的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a3556b7e9458ec54d4cf1de17a5649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e99bebf8db0d314aacb2cb1f09bf48c.png)
A.10个 | B.8个 | C.6个 | D.4个 |
您最近一年使用:0次