1 . 如图,在
中,已知点
在边
上,且
,
,
,
.
的长;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65b4ac8c6590141e03dfeb2e6fe3cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537f0cf181d16e9dce5ec3438e814acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6834ac70927ae08d7d36a1922403c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9ad150cb1e4cd8977d4cc3d99be17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402f1010e94be78552ed4c45548b1b8.png)
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4卷引用:贵州省三穗县民族高级中学2021-2022学年高二上学期期末考试数学(文)试题
贵州省三穗县民族高级中学2021-2022学年高二上学期期末考试数学(文)试题(已下线)第06讲 解三角形-《知识解读·题型专练》(人教A版2019必修第二册)广东省惠州市第一中学2023-2024学年高一下学期第一次阶段考试数学试题山东省泰安市新泰第一中学老校区(新泰中学)2023-2024学年高一下学期期中考试数学试题
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2 . 已知点P在△ABC的边BC上,AP= PC=CA=2,△ABC的面积为
,则sin∠PAB=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2de2292904b991fbd7b1ef30e7203b.png)
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2022-07-20更新
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3卷引用:贵州省黔东南州2021-2022学年度高二下学期期末联考数学(文)试题
3 . 如图,在平面四边形
中,
与
互补,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5901056b42a05c68f472d826775a82.png)
的长;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bca6a457be2f32951bbe07814719c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5901056b42a05c68f472d826775a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462a35893afcd7774f5183e738ad506c.png)
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