名校
解题方法
1 . 在
中,角
所对边分别为
,且
.
(1)求角
的大小;
(2)若
.
(i) 求
的值;
(ii) 求
的值.
![](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/b0ae3f42c7f7cc5083e96215ad82d30f.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2dc430443bbfe43a67d5d0f8e326c6.png)
(i) 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c181f86de3c96a7ef7a1a04c3a438f.png)
(ii) 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21f92926e9c4162282f9329cac60d9f.png)
您最近一年使用:0次
2 . 在
中,内角
,
,
的对边分别为
,
,
,已知
.
(1)求角
的大小;
(2)若
,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/ed9dd37bc166b2618a0df82bff3575c3.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a4d496bea80757ce78844f351fd5dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef6cbb54eedb35d489e8c2259f5c370.png)
您最近一年使用:0次
名校
解题方法
3 . 在
中,角A,B,C所对的边分别为
,
(1)求B;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc11f765b36c49a8715bb5a1975fef5.png)
(1)求B;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022-04-11更新
|
1075次组卷
|
4卷引用:天津市第七中学2022届高三下学期线上第一次阶段检测数学试题
名校
解题方法
4 . 已知
的内角
的对边分别为
,满足
.
(1)求角
的大小;
(2)若
,求
的值.
![](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/916235db336a0b58e85b4345ad8e5937.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985ef3a8e9068ada3abd2dad862e9465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde5b584acf252f9b77ef7d2e91807d1.png)
您最近一年使用:0次
2022-04-07更新
|
1583次组卷
|
7卷引用:天津市和平区2022届高三下学期一模数学试题
名校
解题方法
5 . 记
的内角
,
,
的对边分别为
,
,
,
的面积为
,已知
.
(1)求
;
(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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd574847f780d40764d9ea6ef1e70c1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a12a6ccc4a0aca0922230d21765948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ec9c5eaed4c211a040a2a33fb7c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2022-04-03更新
|
827次组卷
|
3卷引用:天津市第四十七中学2022届高三下学期3月线上练习二数学试题
名校
解题方法
6 . 已知三角形
的内角
所对的边分别为
,
且C为钝角.
(1)求cosA;
(2)若
,
,求三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.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/9e672216ea27ba3a7ea84176cc8f3bb4.png)
(1)求cosA;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f11974b878b1c24185d84a3b978dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
您最近一年使用:0次
2022-03-30更新
|
716次组卷
|
5卷引用:天津市耀华中学2022届高三下学期高考前冲刺(一)数学试题
名校
解题方法
7 . △
的内角A,B,C的对边分别为a,b,c,已知△
的面积为
.
(1)证明:
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1641d47b6412d82c7f64aa79222e2f76.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a93c05337d718428222cced9e91d06.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8da0c6034de92d991429187b0057a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
您最近一年使用:0次
2022-03-17更新
|
5190次组卷
|
11卷引用:天津市南开中学2022届高三下学期统练19数学试题
天津市南开中学2022届高三下学期统练19数学试题广东省广州市2022届高三一模数学试题山东省济南市历城第二中学2021-2022学年高三下学期3月模拟数学试题陕西省西工业大学附属中学2021-2022学年高二下学期第十次大练习数学试题(已下线)三轮冲刺卷07-【赢在高考·黄金20卷】备战2022年高考数学模拟卷(新高考专用)陕西省安康中学2021-2022学年高一下学期第二次月考数学试题(已下线)考点09 解三角形-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)江西省金溪县第一中学2022-2023学年高二上学期开学考试数学试题山东省青岛第五十八中学2023届高三一模数学试题(已下线)专题20 解三角形-1(已下线)黄金卷06
解题方法
8 . 在
中,内角
,
,
所对的边分别为
,
,
,已知
.
(1)求角
的大小;
(2)设
,
.
(i)求
的值;
(ii)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/c4c192fdfdfffc7a13f75048d9afc989.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4c49ac3a5246261706e66f94dccbf5.png)
您最近一年使用:0次
2022-03-15更新
|
949次组卷
|
2卷引用:天津市区重点学校2022届高三下学期二模数学试题
9 . 如图,在四边形
中,
,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bf6c5c852705f9f10fc59e9a2d1694.png)
___________ ;设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffbcd82b98a9ae69aa4ee28bb49a907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1721f5eb9a589d1185a3d1dd225f6a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f733427e678b2bb7ad490b1a2e2e379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bf6c5c852705f9f10fc59e9a2d1694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ba90ce51206e89a4b714d7854557a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
![](https://img.xkw.com/dksih/QBM/2022/3/3/2928293731328000/2936796197675008/STEM/021bae79-cd8e-4c11-922a-98405986f6c3.png?resizew=227)
您最近一年使用:0次
2022-03-15更新
|
970次组卷
|
4卷引用:天津市武清区杨村第一中学2022届高三下学期高考第一次热身练数学试题
名校
解题方法
10 . 在
中,角A,B,C所对的边分别为a,b,c.已知
,
,
的面积为
.
(1)求
的值;
(2)求
的值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0f8cec0bda89b6c2ad7ab3cd6c219c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77c8565e069856095ae493a8f4ba2c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3fea76ea4435589af6bb0267553c1b.png)
您最近一年使用:0次
2022-03-15更新
|
1885次组卷
|
13卷引用:天津市第二中学2022届高三下学期5月线上测试数学试题
天津市第二中学2022届高三下学期5月线上测试数学试题天津市部分区2021-2022学年高三上学期期末数学试题天津市津衡高级中学2022届高三下学期4月月考数学试题(已下线)临考押题卷01-2022年高考数学临考押题卷(天津卷)天津市滨海新区塘沽紫云中学2022-2023学年高三上学期期中数学试题天津市南仓中学2022-2023学年高三上学期期末数学试题黑龙江省哈尔滨市宾县第二中学2021-2022学年高一下学期期末考试数学试题(已下线)天津市南开中学2023届高三下学期第五次月考数学试题天津市滨海新区塘沽第十三中学2022-2023学年高一下学期期中数学试题(已下线)天津市南仓中学2023-2024学年高三上学期10月教学质量过程性检测数学试题天津市静海区第一中学2024届高三上学期12月月考数学试题天津市新华中学2024届高三下学期数学统练6湖南省长沙市宁乡市2022-2023学年高一下学期期末数学试题