解题方法
1 .
的内角
,
,
的对边分别为
,
,
,已知
,且
的面积为
.
(1)求
的值;
(2)若
是
边的中点,
,求
的长.
![](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/6735e1e097882f3577bc52117ba3b6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27567d43c5b91382ee3d7ca708ee422.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
(2)若
![](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/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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2024-05-04更新
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1136次组卷
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2卷引用:四川省泸州市2024届高三第三次教学质量诊断性考试数学(文科)试题
名校
2 . 如图,在平面四边形
中,
.
(1)若
,求
的长;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31e7e43027384e263cbef9ed2a18d1a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/22/2549289e-b8db-4e30-8b8c-afff83c670ba.png?resizew=170)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ebfaeb86a3d30cc50b7dd09b4cd40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46a2b40a9e62d95a4e0dd46874926ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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2023-10-05更新
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7卷引用:四川省2023-2024学年高三上学期第二次联考(月考)理科数学试题
名校
解题方法
3 . 在平面直角坐标系
中,角
以Ox为始边,它的终边与单位圆交于第二象限内的点
.
(1)若
,求
及
的值;
(2)若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6644721146986b75312aa71bd467677c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e5c1f0290f4ae6d59be5ae83656044.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b4cab645c97f6d1710f803ef6a8436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2023-09-23更新
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8卷引用:四川省江油中学2023-2024学年高三上学期9月月考数学(理)试题
四川省江油中学2023-2024学年高三上学期9月月考数学(理)试题黑龙江省哈尔滨市第九中学校2023-2024学年高三上学期10月月考数学试题(已下线)模块四 专题5 大题分类练(三角)基础夯实练(人教A)江苏省常州高级中学2021-2022学年高一上学期期末数学试题(已下线)模块一 专题4 三角恒等变换转化问题(高一人教B)(已下线)第11讲 任意角与弧度制、三角函数的概念、诱导公式(12大考点)(2)(已下线)第04讲 5.3诱导公式-【帮课堂】(已下线)专题5.10 三角函数全章综合测试卷(基础篇)-举一反三系列
名校
解题方法
4 . 在
中,角
所对的边分别为
,已知
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427c0456090443ca06a6f3235e4bed95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fb16047711d186e7af073bdcd18b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d59f54c15a0ad466a7b7eeb7ca06fb3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d444cc6a4a4929431a2066e8105a824b.png)
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5卷引用:四川省成都市蓉城名校联盟2021-2022学年高三第三次联考数学(理)试题
名校
5 .
的内角
,
,
的对边分别为
,
,
,已知
,
,
.
(1)求
;
(2)求
中的最长边.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/de28d337fb56eb2417a4902294545905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f86b0835b4360ba6c7f90bcf4b7490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721e29b775e696045f44a4b1e7f74ef2.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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2019-09-26更新
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7卷引用:四川省仁寿一中等西南四省八校2020届高三9月份联考数学(理)试题
真题
6 . 已知
<
<
<
,
(Ⅰ)求
的值.
(Ⅱ)求
.
![](https://img.xkw.com/dksih/QBM/2010/4/22/1569702048849920/1569702054109184/STEM/ed868a1f5c0a43718a4324b264f8da04.png)
![](https://img.xkw.com/dksih/QBM/2010/4/22/1569702048849920/1569702054109184/STEM/782b52081337494ca810d41c736434b5.png)
![](https://img.xkw.com/dksih/QBM/2010/4/22/1569702048849920/1569702054109184/STEM/bb84ad86591344f7a1ff2bbcbd01cba6.png)
![](https://img.xkw.com/dksih/QBM/2010/4/22/1569702048849920/1569702054109184/STEM/389a4f11da3140f6b9c1fc3bb67b4dcc.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2010/4/22/1569702048849920/1569702054109184/STEM/e0b28aeb053e41b69f14c01e6a61bdbd.png)
(Ⅱ)求
![](https://img.xkw.com/dksih/QBM/2010/4/22/1569702048849920/1569702054109184/STEM/782b52081337494ca810d41c736434b5.png)
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2019-01-30更新
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4卷引用:2007年普通高等学校招生全国统一考试(四川卷)
2007年普通高等学校招生全国统一考试(四川卷)2014-2015学年四川省双流县棠湖中学高一下学期期中考试数学试卷(已下线)2010-2011年宁夏银川一中高一第二学期期中考试数学2014-2015学年江西省上饶市横峰中学等四校高一6月考理科数学试卷
2013·四川内江·三模
名校
7 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca634949580c1adf9f56fa9c9c926bc.png)
(1)求
的值;
(2)若
是第三象限的角,化简三角式
,并求值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca634949580c1adf9f56fa9c9c926bc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c5a05a11f731194a845e68a0479ce4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9840854a247ca4c242a0d6f0c922ed4a.png)
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5卷引用:2014届四川省内江市高中高三第三次模拟考试理科数学试卷
(已下线)2014届四川省内江市高中高三第三次模拟考试理科数学试卷(已下线)2014届四川省内江市高中高三第三次模拟考试文科数学试卷安徽省滁州市定远县育才学校2019-2020学年高一(普通班)上学期期末数学试题江苏省南通市第一中学2019-2020学年高一上学期第二次月考数学试题甘肃省兰州市第二中学2021-2022学年高一上学期期末数学试题
9-10高三·四川成都·阶段练习
8 . 在
ABC中,∠A、∠B、∠C对边分别为a、b、c,已知
,且最长边为
,
(1)求角A; (2)求
最短边的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b26053e632e6f460862178fc71e94a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
(1)求角A; (2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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