如图,直线
相交于点 O,
于点 O.
,求证:
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b79c80cc81b5446dfac3ee97b03c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd6ec8fa1147280a0eaba74744b2d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5385b423da4a4f9f48f07c439465968.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8077efe3542e95f61ba2ac3942c3b5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50239ecd4fcedaac4d817f2d3bd3d067.png)
更新时间:2024-05-07 20:52:54
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【推荐2】如图所示,直线
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【推荐1】如图,点
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