直线l:
与圆C:
相交于两点A,B,且
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d3d22b7fd76bdd0fbc8d6c160dc814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e59eec2dacc7fbd71d15f6425d98fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953ce2cc3dd6d0b091793418bd4ae500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
更新时间:2021-12-03 09:23:07
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