名校
1 . 若原点在圆
的内部,则实数
取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f02866669cf3fd7478d6c4a2f0db48f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 点
在圆C:x2+y2=1内部,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4dc4abcdf51c79aebd5233c6fe4e25.png)
A.(﹣2,2) | B.[﹣2,2] | C.![]() | D.![]() |
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2018-01-02更新
|
420次组卷
|
2卷引用:山东省胶州市2017-2018学年高二上学期期中教学质量检测数学试题
解题方法
3 . 在平面直角坐标系
中,已知直线
与
轴、
轴分别交于
、
两点,点
在圆
上运动,若
恒为锐角,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6561d9785ddc7496a2e242810e54980c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次