名校
解题方法
1 . 若
,
,
,
,则
的值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f07029c97c324d32f258f18a96654a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5059dca84cb4580174d8b911bbe0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efac3f630599fe34aadd7c51ca48c061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-26更新
|
422次组卷
|
5卷引用:江西省上高二中2024届高三适应性考试数学试卷
江西省上高二中2024届高三适应性考试数学试卷广西南宁市第三中学五象校区2024届高三最后套卷(四)数学试题上海市延安中学2023-2024学年高一下学期期中考试数学试题(已下线)考题猜想01三角-期末考点大串讲(沪教版2020必修二)(已下线)专题01 三角函数公式常考题型归类-期末考点大串讲(人教B版2019必修第三册)
2 . 计算
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a452c78a5b7a3bc2ba494f743cf91f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3643a2b11663d9cfc99f55b68d103352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1359c23a4ea67d73c1fd0c7e5b25543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a906d8be3d5ea007b96d4b1f2063522.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知
的内角
,
,
所对的边分别为
,
,
,且
.
(1)求角
的大小;
(2)若
,
,
依次成等比数列,求
的值.
![](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/15a85eb29a3a20d9970e600f27d3e7d6.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](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/367de5eb4da2eb016a6bfc78e25f4ceb.png)
您最近一年使用:0次
2020-08-06更新
|
945次组卷
|
8卷引用:河南省豫南九校2020-2021学年高二(9月份)第一次联考数学(文科)试题
5 . 已知复数
,
,且
,其中i为虚数单位,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f433026f67eef9db20c259ae569399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39f817c8d1f62cfdc3e4fc005cec9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a706338dfb12ab5a279b3581ae46bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6abc69c57972a4efb8301e3308ea9ca6.png)
您最近一年使用:0次
2020-02-21更新
|
417次组卷
|
4卷引用:内蒙古北京八中乌兰察布分校2017-2018学年高二下学期第一次调考数学(文)试题
名校
6 . 在
中,设角
所对的边分别为
,且
.
(I)求角
的大小;
(Ⅱ)若
的面积为1,求
.
![](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/2970431351788838f6c0504d156bf9b5.png)
(I)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2d7ddd7ef3b6cde30018bc6a84b9e0.png)
您最近一年使用:0次