1 . 在锐角
中,内角
,
,
的对边分别为
,
,
.已知
.
(1)求
;
(2)求函数
的定义域及其最大值.
![](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/2edaa44f3a524663ebaa7712ecd549df.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27acb4a3d87e3b126e020a490c814548.png)
您最近一年使用:0次
2020-02-09更新
|
417次组卷
|
5卷引用:云南省楚雄州2019-2020学年高二上学期期末数学(理)试题
名校
2 . 已知
分别为
三个内角
所对的边长,且
.
(1)求角
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dd0c2a4a1107ea28a418a7d281ef5e.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599848001536/1572599853973504/STEM/b59d2ba00d614542a22327c005999249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68691306439182d5600786bea811584.png)
您最近一年使用:0次
2016-12-04更新
|
879次组卷
|
5卷引用:2015-2016学年重庆市一中高一4月月考数学试卷1