名校
解题方法
1 . 在
中,角
,
,
所对的边分别是
,
,
,且
.
(1)证明:
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7ff1a6e9de32a429b55e95a7c5ccc3.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059f94f2e110a6c70c7e2a627169808c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bfeaf26f178031f78a5545233a2a73f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
您最近一年使用:0次
2021-10-05更新
|
406次组卷
|
2卷引用:新疆维吾尔自治区乌鲁木齐市第十二中学2024届高三上学期12月月考数学试题
名校
2 . 已知在
中,
,
.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff09908d8a83f8349d062dc2503c5d49.png)
(2)设
,求AB边上的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9f29383885f085b64b7091e1cd5884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3eb30d0f216d0790be03c79ffd7a4d5.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff09908d8a83f8349d062dc2503c5d49.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
您最近一年使用:0次
2020-02-29更新
|
144次组卷
|
2卷引用:新疆乌鲁木齐市第四十中学2024届高三上学期10月月考数学试题