若二次根式
在实数范围内有意义,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a13e45d704549cede37dd69b3b26a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2022-07-25 10:16:50
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【知识点】 二次根式有意义的条件解读
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【推荐1】下列各式中,是二次根式有( )
①
;②
;③
;④
;⑤
;⑥
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053014eda208deb38781688e0a22a51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30860dc6b833418e7176a82cddb0ad2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56426a4f714bb3f702c7b741f7b45001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3fc570e3e3653618b8042e6753fa27a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b28a1921b6f588fd7f00a699bc41629.png)
A.2个 | B.3个 | C.4个 | D.5个 |
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