1 . (1)当
时,求证:
;
(2)如图,圆内接四边形
的四个内角分别为
、
、
、
.若
,
,
,
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b672c5d9039341408b07033d3fd4cd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40dcc73227726c7251e313d047c5517.png)
(2)如图,圆内接四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f094001e6d2bc08c99192e0d3a39c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/644f9999-f773-4c37-aa93-67923928d13b.png?resizew=151)
您最近一年使用:0次
2019-12-24更新
|
1694次组卷
|
3卷引用:内蒙古呼和浩特市2019-2020学年高三上学期质量普查调研考试数学(理)试题
内蒙古呼和浩特市2019-2020学年高三上学期质量普查调研考试数学(理)试题内蒙古呼和浩特市2019-2020学年高三上学期质量普查调研考试数学(文)试题(已下线)专题07 三角形中的组合图形问题(第一篇)-备战2020年高考数学大题精做之解答题题型全覆盖
2 . 设
的内角
所对的边分别为
,且
,则
的最大值为
![](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/c50dcf692b54ea9c3ee09f7e7a595295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb1cc5ce43b5fad609f8bdf8066d121.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-12-03更新
|
2112次组卷
|
5卷引用:内蒙古呼和浩特市2018届高三11月质量普查考试数学(理)试题