名校
解题方法
1 .
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求
的值;
(2)若
,
的面积为
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561c8a4a7d08e1ac4a32048dfe4d4951.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402f1010e94be78552ed4c45548b1b8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad09921d9904335a83078262ce62a473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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5卷引用:河北省保定市定州中学2023-2024学年高一下学期5月期中考试数学试题
河北省保定市定州中学2023-2024学年高一下学期5月期中考试数学试题山西省忻州市2023-2024学年高一下学期5月月考数学试题河北省保定市定州市第二中学2023-2024学年高一下学期5月月考数学试题(已下线)专题05 解三角形(1)-期末考点大串讲(人教B版2019必修第四册)河北省廊坊市文安县第一中学2023-2024学年高一下学期5月月考数学试题
2 . 如图,已知两座山的海拔高度
米,
米,在BC同一水平面上选一点
,测得
点的仰角为
点的仰角为
,以及
,则M,N间的距离为____________ 米.(结果保留整数,参考数据
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9cbea10075834324a661a4514c4e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664ef8298f9c6eef667861e1da9bd8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96826763a0ea52872b73c25460e2d973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c030b25575d683af91c06e6a3e4f463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fddda4936a9be50e32b18b4c79e8b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e37ef1a48dbbf1c399ece970d3a92c.png)
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3 . 已知
中,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2964fea2c107bbfd4a07fc97f4de5988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657921f28d9ebc92f154ac16d3599b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d75a838ebbe4ecb373ab5b92222883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72511f149a1b13af02d0e1421d3a63a5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5卷引用:福建省晋江市养正中学2023-2024学年高一下学期5月期中考试数学试题
福建省晋江市养正中学2023-2024学年高一下学期5月期中考试数学试题(已下线)专题03 解三角形(1)-期末考点大串讲(苏教版(2019))陕西省西安市南开高级中学2023-2024学年高一下学期五月月考数学试卷(已下线)专题04 解三角形小题常考题型归类-期末考点大串讲(人教B版2019必修第四册)(已下线)第2套 全真模拟卷 (基础)【高一期末复习全真模拟】
名校
解题方法
4 . 在
中,角
,
,
的对边分别是
,
,
且
.
(1)求角
的大小;
(2)若
,
为
的中点,
,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/a92fe113cbecdb1a22767f2345e8864e.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8791c2265b45b81b975e6cfd5f897c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
5 . 在
中,内角A,B,C所对的边分别为
,
,
.向量
,若
,则角
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/e46b92fab0a266ac5ef51cd6774c8519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9209ef1481215432dc798e9189d873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
6 . 已知
的内角A,B,C所对的边分别为a,b,c,且
,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e763348ce457e931648f62ee070405a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
解题方法
7 . 在
中,内角A,B,C的对边分别为a,b,c,若
,则A的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793ce67a5efb1e56cb699bb22c27aa1c.png)
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名校
解题方法
8 . 记
的内角A,B,C的对边分别为a,b,c,已知
.
(1)证明:
;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f73789e156d750cb54fe27ce4b04712.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a70d8f920d57c9c3f9cbffaf45c4055.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
9 . 在
中,角
,
,
的对边分别为
,
,
,且
.
(1)求角
的大小;
(2)设
是边
的中点,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.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/2ef8ad9f9cf060771d47d36cde93afae.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b797b233b15aec07162a0da5de29a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
10 . 在
中,角
的对边分别为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7112e7ccb1eb90facfa5182ea763970a.png)
_________ .
![](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/a6cf7c342ca03223c26581d35f049a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7112e7ccb1eb90facfa5182ea763970a.png)
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