1 . 如图,在平面四边形
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/12038377-5663-4e01-8db0-44b5fcc8d744.png?resizew=175)
(1)求
的大小;
(2)求边
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca3dd79102f4786faf061bb654e4366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7110e8cff2aac92eb1fc0cf91dd752b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fad411f89cba8ddd07a4bafc2f8f667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/12038377-5663-4e01-8db0-44b5fcc8d744.png?resizew=175)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
(2)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-04-19更新
|
927次组卷
|
6卷引用:陕西省西安市第八十三中学2022-2023学年高一下学期期中数学试题
陕西省西安市第八十三中学2022-2023学年高一下学期期中数学试题陕西省西安市临潼区部分学校2022-2023学年高一下学期期中联考数学试题陕西省西安市莲湖区2022-2023学年高一下学期期中数学试题福建省莆田第十五中学2022-2023学年高一下学期期中测试数学试题(已下线)考点巩固卷11 解三角形(九大考点)(已下线)第11章 解三角形 章末题型归纳总结(1)-【帮课堂】(苏教版2019必修第二册)
名校
解题方法
2 . 已知
为锐角三角形,且
.
(1)若
,求
;
(2)已知点
在边
上,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2ce64fd120080d6a32c538f9e33ad3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0334bc85843337c4dfcfdc5c638f9f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)已知点
![](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/27b9f4b154a308c3613409cc65486644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2023-04-19更新
|
4260次组卷
|
13卷引用:陕西省西安市长安区第一中学2024届高三上学期期中数学(文)试题
陕西省西安市长安区第一中学2024届高三上学期期中数学(文)试题陕西省西安市长安区第一中学2024届高三上学期期中数学(理)试题广东省佛山市2023届高三二模数学试题(已下线)专题03 三角函数与解三角形(已下线)押新高考第17题 解三角形专题10解三角形(已下线)模块二 专题3 解三角形与不等式湖北省武汉市部分重点中学2022-2023学年高一下学期期末联考数学试题广东省东莞市东莞高级中学2022-2023学年高一下学期期中数学试题(已下线)专题08 解三角形-2广东省深圳市人大附中深圳学校2024届高三上学期10月月考数学试题广东省肇庆市肇庆中学2023届高三下学期强化训练模考五数学试题福建省福州市六校2023-2024学年高二上学期期末联考数学试题
名校
解题方法
3 . 某地在路边安装路灯,灯柱
与地面垂直,满足
,灯杆
与灯柱
所在平面与道路垂直,且
,路灯
采用锥形灯罩,射出的光线如图中阴影部分所示,已知
,路宽
,单位为
.
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/b1f9c976-c53d-4f76-928f-5298aa5a1fb3.png?resizew=187)
(1)当
时,求四边形
的面积;
(2)若灯杆
与灯柱
所用材料相同,记此用料长度和为
,求
关于
的函数表达式,并求出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6037bba27008abc96a6dba99753549ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedf65d7d930fdb972d4802c0dea8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59567dbf014b5608475254efb2cf2c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbab64c34b6317ee4c68ba7f8d56c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ee2c2082e35f409e2a5280a7ed34c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd16de2bd1c5c7944eb86070ada38ec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/b1f9c976-c53d-4f76-928f-5298aa5a1fb3.png?resizew=187)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dc2063147bb66cc18c7cab905bb662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若灯杆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2023-04-18更新
|
315次组卷
|
2卷引用:陕西省西安市长安区第一中学2022-2023学年高一下学期期中数学试题
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f1432cc6d799e5ec61991236dc9ff7.png)
(1)求函数
的单调递增区间;
(2)在
中,角
,
,
的对边分别为
,
,
,且
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f1432cc6d799e5ec61991236dc9ff7.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](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/d365cdf0e3096f91df62d126a0f3aa1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.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
5 . 在
中,角
的对边分别为
,且
.
(1)求
的大小;
(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/c72fd15c9824d4637dc6a5767aa70d9b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09eebab59213386449a726b75065bf76.png)
![](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
2023-04-15更新
|
1559次组卷
|
5卷引用:陕西省榆林市绥德中学2023届高三下学期4月月考文科数学试题
名校
6 . 在
中,角
、
、
所对的边分别为
、
、
,已知
,
,
.
(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/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/1d16788e9a46f27571e4a7cf56dc48d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82986ab38a4ae58593191ccae2a44f62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-04-14更新
|
887次组卷
|
5卷引用:陕西省西安市周至县2024届高三一模数学(文)试题
7 . 已知
的内角A,B,C的对边分别为a,b,c,
的外接圆的半径为R,且
,且
.
(1)求B;
(2)若
,
,求
.
![](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/78bf73aac7287929812675ccf0ba4c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e124aadc347ad540de68f2c6d17afc4.png)
(1)求B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
您最近一年使用:0次
2023-04-12更新
|
740次组卷
|
4卷引用:陕西省天一大联考2022-2023学年高一下学期4月期中数学试题
名校
8 .
的内角A,B,C所对的边分别为a,b,c,已知
.
(1)求角C;
(2)若
,D为BC中点,
,求AD的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e43ae70bf1cdce24d3189cf670a6d7.png)
(1)求角C;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44bd8ca938b929fe0dea5a904fe34aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8819cc94366a9931d38af58ac6d7e3.png)
您最近一年使用:0次
2023-04-04更新
|
1092次组卷
|
2卷引用:陕西省西安市铁一中学2022-2023学年高二下学期期中理科数学试题
13-14高三上·云南玉溪·阶段练习
名校
9 . 已知在
中,角
所对的边分别是
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7d933b51a7f0cdd7767ae6adc8a402.png)
(1)求
的大小;
(2)若
,求
的取值范围.
![](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/bd7d933b51a7f0cdd7767ae6adc8a402.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
您最近一年使用:0次
2023-04-03更新
|
2209次组卷
|
15卷引用:陕西省咸阳市武功县普集高级中学2022-2023学年高一下学期3月月考数学试题
陕西省咸阳市武功县普集高级中学2022-2023学年高一下学期3月月考数学试题上海交通大学附属中学嘉定分校2022-2023学年高一下学期开学考试数学试题四川省成都外国语学校2022-2023学年高一下学期期中考试数学试题(已下线)2014届云南省玉溪一中高三上学期第一次月考理科数学试卷(已下线)2014届云南省玉溪一中高三上学期第一次月考文科数学试卷(已下线)2014届云南部分名校(玉溪一中)高三11月月考理科数学试卷2015届甘肃省兰州市高三诊断考试理科数学试卷2015届安徽省安庆五校联盟高三下学期3月联考数学理科数学试卷2014-2015学年江西省余江县一中高一下学期期中数学试卷宁夏青铜峡市高级中学2018-2019学年高一下学期期末考试数学试题太原师院附中2018-2019学年高一第四次月考数学试题河南省信阳市息县第一高级中学2019-2020学年高二上学期第二次阶段性考试数学(文)试题江苏省宿迁市泗洪县洪翔中学2019-2020学年高一下学期第一次月考数学试题广东省揭阳市揭西县河婆中学2020-2021学年高二上学期第一次月考数学试题(已下线)考题猜想01三角-期末考点大串讲(沪教版2020必修二)
名校
解题方法
10 . 已知
的内角A,B,C的对边分别为a,b,c,且
.
(1)求C;
(2)若
,角C的平分线交AB于点D,点E满足
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d9c370cab0dbdcb00199cfce742df.png)
(1)求C;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc0eb7fad426f436176c6b5be3d567b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0df406a9e97b02e6cd8d7dd9bf41eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1dd86fca5130418ed11c94bc1542a4.png)
您最近一年使用:0次
2023-03-27更新
|
1323次组卷
|
3卷引用:陕西省咸阳市实验中学2022-2023学年高一下学期第二次月考数学试题