设函数
的定义域为
,如果
,
,使得
成立,则称函数
为“
函数”. 给出下列四个函数:①
;②
;③
;④
,则其中“
函数”共有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1da2db85b44ae9ced8c09cd19593e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1902ef70f2b5d826538d9e01809f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babaf7e9f65985b3db2d8bd0175678f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9214539e367939d3f4676758334411d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a3fd04f4b3ba73d29a5d74be19ec38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65bd963b750b4223c3dc9e6c60739d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425ad5d1dcba7cc85a711f9774cb75e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
A.1个 | B.2个 | C.3个 | D.4个 |
更新时间:2024-05-25 15:53:12
|
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【推荐2】已知函数
,且
,
,
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( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd8f4ae110f816cc9b6c9f191486b52.png)
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A.2028 | B.2026 | C.2024 | D.2022 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐2】函数
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ef6be2e160946e6e4bc8182972cad2.png)
A.奇函数 | B.偶函数 | C.非奇非偶函数 | D.既奇又偶 |
您最近一年使用:0次
单选题
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【推荐1】已知
,若对任意
,均有
,则函数
可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7552cd1f3525a8ac34ba7fe51c225e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f95425c7f376f1d63a3e8a16f207dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较易
(0.85)
名校
【推荐2】设
,定义运算“
”和“
”:
,
,若正数
满足
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83eb829e3338a9e4be598124855685e8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6063256f3a68fb22bb52bfdb8cf5e6e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d013eba4c04e189b673b855dddfff044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e14cc5eb8fc0c17058e33ae8e3765f.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次