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1 . 已知直线
:
上存在点A,使得过点A可作两条直线与圆
:
分别切于点M,N,且
,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe31f22a77fd0ad51788f5642d72425d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6b27d48838cb1a42a9c59b3d049a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7231ec83386010f305e121ce60e23d02.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-04-13更新
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988次组卷
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5卷引用:重庆市2023届普高三模拟调研(三)数学试题