已知圆
,点
,若圆C上存在两点A、B,使得
,则t的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caaab97b6da171d21356ed8338ead646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9892769bc085d22e565e8b67ba9d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0d5b310da9879fcf7f17a7d84b1d5b.png)
更新时间:2023-08-18 20:29:58
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