在
中,角
的对边分别为
,
.
(1)求角
的大小;
(2)若
,
为
外一点,如图
,
,求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d46c2f183e4707ded54dc65a7fe1375.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1e7f5a2a4b85244fe9dc569009cf9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/18/6705480f-e7a3-4584-b509-ea360976d932.png?resizew=111)
22-23高一下·北京·期中 查看更多[3]
北京市一零一中学2022-2023学年高一下学期期中考试数学试题福建省华安县第一中学2022-2023学年高一下学期第一次月考数学试题(已下线)第六章 平面向量及其应用 单元复习提升(2)-单元速记·巧练(人教A版2019必修第二册)
更新时间:2023-05-12 08:28:33
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适中
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(1)求
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(2)求
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【推荐2】在锐角
中,角
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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适中
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解题方法
【推荐1】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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(1)求角
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(2)若
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【推荐1】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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(2)若
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【推荐2】在
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(1)求
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(2)若
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(ⅱ)求
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解答题-问答题
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适中
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名校
解题方法
【推荐1】在
中,内角A、B、C所对的边分别为a、b、c,且
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适中
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