解题方法
1 . 已知
的外心为
,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9754538592bb0fa6d128b47bd661ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c974e03063582f3c40c1a25db748c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
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2022-02-27更新
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1480次组卷
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4卷引用:河南省许昌市2021-2022学年高三下学期高中毕业班(二模)阶段性测试(四)理科数学试题