名校
解题方法
1 . 如图,已知
与
的夹角为
,点C是
的外接圆优孤
上的一个动点(含端点A,B),记
与
的夹角为
.
外接圆的直径
;
(2)试将
表示为
的函数;
(3)设点M满足
,若
,其中
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0f936f1823d6457568f3fc97622d51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7f30167e1135806fe9de641870b1e6.png)
(2)试将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d54eacd5cf71d799a3a9e73e929795b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(3)设点M满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9edbf43917a21e2aca1aa8fb2c961d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450743dbe1916012643039cd87a72263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d6835f82fb782e9492183a4871302b.png)
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2023-04-21更新
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