名校
1 .
,
的定义域为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58119f48aa8860923d1f13dd78a17c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40fccbe9af25b6066262f561e4b2f304.png)
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2022-05-16更新
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867次组卷
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2卷引用:云南省德宏州2020-2021学年高一上学期期末统一监测数学试题
名校
2 . 已知
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e714219c4cb0bdc5f06d819b8a61a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
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