名校
解题方法
1 . 已知向量
,
,函数
.
(1)求方程
在区间
的解集;
(2)在
中,角A、B、C的对边分别是a、b、c,且满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730fd62ec039ec8be52d11c1eed2aa0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec5f9213298cf7d50c328eb5f72b2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104745f6548c40d42d046514e78df46.png)
(1)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc3666bd0e780d4c96e153446612181.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d37b2f8d5da8eaa07442b941017c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e3d87be9f706832ef25537d78a201b.png)
您最近一年使用:0次
2020-09-13更新
|
296次组卷
|
2卷引用:上海市复旦大学附属中学青浦分校2020届高三下学期开学摸底数学试题
名校
2 . 在
中,
分别是角
的对边,且关于
的不等式
解集为
.
(1)求角
的大小;
(2)若
,设
,
的周长为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1300cfc70572e2a252de8bd9402aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d3af553a481761f30765a59ffdf7d3.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5406658ef654e36d7a8a76f12c8817fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c5382d25c3d7252cab2234149edaed.png)
您最近一年使用:0次
2016-12-04更新
|
499次组卷
|
2卷引用:2015-2016学年四川成都石室中学高一下期中数学试卷