名校
1 .
中,角
的对边分别为
,若
,
,
,则
( )
![](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/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f2f1eb2beb23690f56a68dc7da08cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2 . 在
中,若
,
,
,则
为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de16a599ba999b3b14a41424eceef9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f39603428a8fc71bc9841f2be95327f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
3 . 已知在
中,内角
、
、
的对边分别为
、
、
,
,
,
.
(1)求
;
(2)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/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019eb94a6a2b38308811470d860e1a20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0334bc85843337c4dfcfdc5c638f9f62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
您最近一年使用:0次
2024-01-16更新
|
634次组卷
|
3卷引用:2024年广东省普通高中学业水平合格性考试数学试卷(B)
2024年广东省普通高中学业水平合格性考试数学试卷(B)(已下线)专题1.7 余弦定理和正弦定理-重难点突破及混淆易错规避(人教A版2019必修第二册)四川省遂宁市安居育才中学校(卓同教育集团)2023-2024学年高一下学期3月月考数学试题
23-24高三上·广东深圳·开学考试
名校
解题方法
4 . 在
中,内角
所对的边分别为
,已知
,且
.
(1)求
的值;
(2)求
的面积;
![](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/63d0c8ba1cd4f0db544737d82f0446cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa9ba32525ae647cdc078865f0ffccf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32f2d4d1d2c16c54b2caef17840bfcb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-08-17更新
|
1067次组卷
|
5卷引用:2024年广东省普通高中学业水平合格性考试模拟(一)数学试题
2024年广东省普通高中学业水平合格性考试模拟(一)数学试题广东省普通高中学2024届高三第一次学业水平合格性考试数学试题(一)(已下线)广东省深圳市深圳中学2024届高三上学期8月开学摸底数学试题广东省肇庆市鼎湖中学2024届高三上学期10月月考数学试题(已下线)第11讲 6.4.3 第2课时 正弦定理 (1)-【帮课堂】(人教A版2019必修第二册)
5 . 已知
的内角
所对的边分别为
,满足
.
(1)求
外接圆的面积;
(2)若
,求
的面积.
![](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/6eba204933939cf26cea7fc75a64d958.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-12-21更新
|
2959次组卷
|
3卷引用:广东省2024届高三第一次学业水平考试(小高考)数学模拟试题(三)
广东省2024届高三第一次学业水平考试(小高考)数学模拟试题(三)广东省汕头市潮阳区河溪中学2023-2024学年高二上学期第四学月考试数学试题(已下线)9.1.1正弦定理-同步精品课堂(人教B版2019必修第四册)
解题方法
6 . 已知
的内角
所对应的边分别为
,且
.
(1)求
;
(2)若
,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/5e00e63cc99133b7c065876cdcde1737.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6dcbbc661e8e6d79906f5ea10a6293a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e563e032dfdef69b0f357060c27bd4.png)
您最近一年使用:0次
7 . 在
中,边长
,则边长
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a156081ede53c735bce853722a3e036e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c040faaf650a08f307d57e9702498b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 在
中,
,
,则
的长可表示为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d831223c3c4ae2ee718118f97a06d6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知
中,
,
,
,解此三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d08b57154095b7094748c6f7962741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa6633438cc8c38e7843d5b5018f66a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681d4bd61655db4571359615e2626fbf.png)
您最近一年使用:0次
10 . 如图,某人在河南岸的点A处,想要测量河北岸的点
与点A的距离,现取南岸一点
,得
,
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/2e36cdde-3150-4640-9b01-191d005619fe.png?resizew=158)
![](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/cb2cf0e95fdf1fd8a5b01d3dfd905e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15947f9f2cd8a7aa37728f44f8fbc114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3002335e287111602d47264d68323c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/2e36cdde-3150-4640-9b01-191d005619fe.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次