名校
解题方法
1 . 在
中,角
所对的边分别为
且
.当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.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/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2aa66f20c71359a8877729321c4981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd05757287dbdb9ae8f7b15bf6110849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
您最近一年使用:0次
2024-05-06更新
|
637次组卷
|
2卷引用:黑龙江省大庆市实验中学2023-2024学年高一下学期6月份阶段性质量检测数学试卷
名校
解题方法
2 . 在
中,角
的对边分别为
,且
.
(1)求角
的大小;
(2)若
的面积
,求
的周长.
![](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/d6a3ea9fb31d1aacecec6926e13dc3fc.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcb73a2dc40069c748730f6bac9031e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-05-04更新
|
890次组卷
|
4卷引用:黑龙江省哈尔滨市第九中学校2023-2024学年高一下学期6月月考数学试题
黑龙江省哈尔滨市第九中学校2023-2024学年高一下学期6月月考数学试题福建省福州第三中学2023-2024学年高二下学期期中考试数学试卷江西省南昌市第十九中学2023-2024学年高一下学期5月期中考试数学试题(已下线)专题02 第六章 解三角形及其应用-期末考点大串讲(人教A版2019必修第二册)
名校
解题方法
3 . 在
中,角
、
、
的对边分别为
、
、
,若
,又
的面积
,且
,则
( )
![](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/4d0037c350daed54ed9a4d8f67c87c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2df1d745380af6b8305bfd345b2f455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759ee5f5ca252f6acce1aacea9d17fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92501bab17937ad492dfb8f1fb988a0a.png)
A.64 | B.84 | C.-69 | D.-89 |
您最近一年使用:0次
2024-05-04更新
|
479次组卷
|
10卷引用:黑龙江省大庆市实验中学实验二部2023-2024学年高一下学期期中考试数学试卷
黑龙江省大庆市实验中学实验二部2023-2024学年高一下学期期中考试数学试卷重庆市巴蜀中学校2023-2024学年高一下学期3月月考数学试题(已下线)高一 模块3 专题1 第2套 小题进阶提升练重庆市长寿中学校2023-2024学年高一下学期学段考试一(4月)试题(已下线)高一 模块3 专题1 第2套 小题进阶提升练1重庆市清华中学校2023-2024学年高一下学期4月阶段测试数学试题山东省青岛市第五十八中学2023-2024学年高一下学期期中考试数学试题福建省南平市高级中学2023-2024学年高一下学期期中考试数学试题福建省南平高级中学2023-2024学年高一下学期期中数学试卷(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)
名校
解题方法
4 . 在
中,角A,B,C的对边分别为a,b,c,S为
的面积,
,且
,则
的周长的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6984a43c616a76e0ffa2f3270123e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知a,b,c分别为
三个内角A,B,C的对边,且
.
(1)求
;
(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/5667d09afb0fa7d66db5e4a1461672f2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232a13d42a147595c994f26a9404fd77.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
6 . 记
的内角
,
,
的对边分别为
,
,
,已知
,
.
(1)求角
的大小;
(2)已知直线
为
的平分线,且与
交于点
,若
,求
的周长.
![](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/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfec3b3a1c42ad3c4b97b0b7e6e338a.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82c91bdcabc53dea2b9601f7ee68fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-05-03更新
|
2163次组卷
|
2卷引用:黑龙江省哈尔滨市第六中学校2024届高三下学期第二次模拟考试数学试题
7 . 约会“哈尔滨”,松花江北岸一方缤纷的冰雪童话世界永藏记忆.龙年春节初六24时,随着最后一名“小金豆”从超级大滑梯上滑下后走出大门,华丽缤纷的哈尔滨冰雪大世界正式闭园.游客从A处上至大滑梯顶端C处有两种路径.一种是从A沿直线步行到C,另一种是先从A沿电梯到B,然后从B沿直线步行到C,现有甲、乙两位游客从A处出发,甲沿
匀速步行,速度为
.在甲出发
后,乙从A乘电梯到B,在B处停留
后,再匀速步行到C,假设电梯匀速直线运动的速度为
,
长为
,经测量得
,
.
的长;
(2)当乙在电梯上与甲的距离最短时,乙出发了多少min?
(3)为使两位游客在C处互相等待的时间不超过
,问乙步行的速度应控制在什么范围内?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c50834b26a331a088894e4d1f6ad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9504a819e9225ac8743c8c0809492370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9504a819e9225ac8743c8c0809492370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fa315234c42ac12a1de359c1f98a77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc0441694b75e3da3e02ba93facaa6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9662e1072d075c67e9b487584ba2f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9938f4e86299b789840a58159eb9527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)当乙在电梯上与甲的距离最短时,乙出发了多少min?
(3)为使两位游客在C处互相等待的时间不超过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97838474d4b88b0006ad1ad4494f95d6.png)
您最近一年使用:0次
名校
解题方法
8 . (1)记
的内角A,B,C的对边分别是a,b,c,已知
.求A;
(2)在
中,a,b,c分别是角A,B,C的对边,
,求角B的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366f31440d44b6f95bd495f0ff5cc46b.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8bfcddfc7b863f4aafe94a8019eff1.png)
您最近一年使用:0次
名校
9 . 已知
的内角
的对边分别为
.
(1)求边
;
(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/8f2044273d3dd1a8d53d4baeb7198eb2.png)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
10 . 已知
的内角
的对边分别为
,满足
.
(1)求角
的大小;
(2)若
的面积为
,求
的周长和外接圆的面积.
![](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/43786ef3d1325cfee6a688120c698dbe.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f6497aa3e4e550e732c4ca46a808d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次