若函数
同时满足:
对于定义域上的任意x,恒有
;
对于定义域上的任意
,当
时,恒有
,则称函数
为“理想函数”
下列四个函数中:能被称为“理想函数”的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34e9794d31b207750914222a39d9036.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717a1efcded39ade5c5e98eeb21013e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2022-03-24 12:53:28
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【推荐1】已知定义域为
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,
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【推荐2】已知函数
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A.![]() |
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【推荐1】定义一:关于一个函数
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在
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【推荐1】若函数
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【推荐2】若函数
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