1 . 若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5262656b3496f13c2dd370da1d863e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e17665d4eab6c22bcd950136d52f622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c50a0367a96faa9a98569102161ace3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5262656b3496f13c2dd370da1d863e.png)
您最近一年使用:0次
解题方法
2 . 在
中,内角
所对的边分别为
,过点
作
,垂足为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8343b9b55ba25d01b3fd7ae389012b.png)
__________ .
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4bffe16e2d2c3a124c8089d21af47d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8343b9b55ba25d01b3fd7ae389012b.png)
您最近一年使用:0次
2024高三·全国·专题练习
名校
解题方法
3 . 锐角
中,A,B,C所对的边分别为a,b,c,若
,且
的面积是1,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1021b0169b6a3803e736fdf4a380436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b02a4ee2e309abde02a9fa63912204.png)
您最近一年使用:0次
4 . 已知
,则
=___
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241f210a14d775245dedc2f63ff6593d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c14f3d620c6508f982c63cdc6cf0f28.png)
您最近一年使用:0次
2019-04-13更新
|
783次组卷
|
5卷引用:青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题