解题方法
1 . 在
中,已知
,
,
.
(1)求角
;
(2)若
为锐角三角形,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf37709e1140f20b7a405e20d6e32060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147ab2d582e60bee6d81b27236e7288b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3b785ebbf5889849e872f461669f71.png)
您最近一年使用:0次
名校
解题方法
2 . 已知向量
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c26bda539b7c10e607288263565427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4bb68bc1395f4cbcb5889aa39e1b7c.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2023-07-27更新
|
481次组卷
|
3卷引用:贵州省铜仁第一中学2023-2024学年高二上学期8月摸底衔接质量检测(一)数学试题