名校
1 . 在
中,角
,
,
的对边分别为
,
,
,且
.
(1)求
;
(2)若
,求
面积的最大值.
![](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/08ec024aa09ca7808760d99b6dbbf7d8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-05-11更新
|
844次组卷
|
5卷引用:四川省凉山宁南中学2021-2022学年高二上学期开学考试数学(理)试题
解题方法
2 . 如图在锐角
中,内角
的对边分别是
,若
.
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712400768770048/2717886979817472/STEM/837d13f2-efd1-4aba-927b-444b4e8dc760.png?resizew=233)
(1)求角
;
(2)若在线段
上存在一点
,使得
,
为
延长线上一点,
,
,
,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/0f320f1a83cce482ed23838c0d2a4e55.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712400768770048/2717886979817472/STEM/837d13f2-efd1-4aba-927b-444b4e8dc760.png?resizew=233)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若在线段
![](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/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133f14539e3090e18427017ff212d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8b0acd214adce8b19df1e586d41be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a552f9f322cf0b4c272af58bad4e2ec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-05-10更新
|
430次组卷
|
2卷引用:四川省凉山州2021届高三二模数学(文科)试题
名校
解题方法
3 . 在△ABC中,角A,B,C的对边分别为a,b,c.已知12(acosC+ccosA)=13bcosB.
(1)求cosB;
(2)若a+c=15,且△ABC的面积为5,求b的值.
(1)求cosB;
(2)若a+c=15,且△ABC的面积为5,求b的值.
您最近一年使用:0次
2021-12-10更新
|
456次组卷
|
7卷引用:四川省凉山宁南中学2019-2020学年高二上学期第二次月考数学(理)试题
名校
4 .
的内角
所对的边分别为
.已知角
成等差数列,且
.
(1)求
的外接圆直径;
(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/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2020-12-07更新
|
1019次组卷
|
6卷引用:四川省凉山彝族自治州宁南中学2020-2021学年高二下学期第二次月考数学(文)试题
名校
5 . 在
中,角
、
、
所对的边分别为
、
、
,且满足
.
(1)求角
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/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/aebe81d90dad0db8d1883ead8cc909f0.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8653af649d2a1b22f50c8529ef43136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611ac9d3f040cef52e4559267fd7b632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2020-11-12更新
|
1684次组卷
|
7卷引用:四川省凉山宁南中学2020-2021学年高二上学期第二次月考数学(文)试题
名校
解题方法
6 . 已知
的内角
所对的边长分别是
,设向量
,
,若
,则角
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/40141e655bb881ffbf828dbbfe682498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7eaed3e14b66a057668bd3a7e34bae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32b6dc307d12bbd6b850a67b0599620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.30° | B.60° | C.120° | D.150° |
您最近一年使用:0次
2020-10-16更新
|
762次组卷
|
5卷引用:四川省凉山彝族自治州宁南中学2020-2021学年高二下学期第二次月考数学(文)试题
名校
解题方法
7 . 在
中,角
,
,
的对边分别为
,
,
,向量
,
,
.
(1)求角
的大小;
(2)若
的面积为
,且
,求
的值.
![](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/efc9339e44d9a95d8c9adbb8a0a718cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc980dbb77bc1040c7a7d6aa1056af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a70d446e6fc756806938596817fd1bd.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/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1321c2d0bfa223b176e4e6a1286b98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2020-09-09更新
|
1297次组卷
|
15卷引用:四川省凉山宁南中学2020-2021学年高一下学期第二次月考数学(理)试题
四川省凉山宁南中学2020-2021学年高一下学期第二次月考数学(理)试题四川省凉山宁南中学2020-2021学年高一下学期第二次月考数学(文)试题安徽省六安市第一中学2020-2021学年高三上学期第五次月考数学(理)试题云南省丽江市第一中学2020-2021学年高二3月月考数学(文)试题云南省丽江市第一中学2020-2021学年高二3月月考数学(理)试题江苏省南京市第十二中学2021-2022学年高三上学期8月线上月考数学试题福建省泉州科技中学2020-2021学年高一下学期第一次月考数学试题山东省2020届高三新高考预测数学试卷(已下线)考点16 正、余弦定理及解三角形-备战2021年高考数学(文)一轮复习考点一遍过(已下线)第五单元平面向量与解三角形、复数(B卷 滚动提升检查)-2021年高考数学一轮复习单元滚动双测卷(新高考地区专用)(已下线)第五单元 平面向量( A卷 基础过关检测)-2021年高考数学(理)一轮复习单元滚动双测卷(已下线)第八单元直线与圆(B卷 滚动提升检查)-2021年高考数学一轮复习单元滚动双测卷(新高考地区专用)(已下线)考点17 正、余弦定理及解三角形-备战2021年高考数学(理)一轮复习考点一遍过(已下线)考点17 平面向量的线性运算与基本定理-2021年新高考数学一轮复习考点扫描(二)云南省楚雄彝族自治州民族中学2022-2023学年高二下学期3月月考数学试题
名校
8 . 已知
是双曲线
上的一点,
,
是双曲线的两个焦点,且
,则
的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1892b7c3cd7bea116f532f66fba44662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7affd8a277498fd39b4a2a95d649f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
您最近一年使用:0次
2020-12-11更新
|
240次组卷
|
3卷引用:四川省凉山宁南中学2021-2022学年高二上学期第二次月考数学(文)试题
名校
解题方法
9 . 在
的内角A、B、C所对的边分别为a、b、c,且
.
(1)求角A的大小;
(2)若
的周长为8,外接圆半径为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e9331a0aeb6be20548b99981a93c75.png)
(1)求角A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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
2020-07-23更新
|
319次组卷
|
2卷引用:四川省凉山宁南中学2020-2021学年高一下学期第二次月考数学(理)试题
名校
10 . 在
中,内角
的对边分别是
.若
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/bbc0c04cb989c96fe7381067fb3d4265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8eb717b9354e1490aba324ed4054bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2018-01-08更新
|
960次组卷
|
9卷引用:四川省凉山宁南中学2021-2022学年高二上学期开学考试数学(理)试题
四川省凉山宁南中学2021-2022学年高二上学期开学考试数学(理)试题四川省凉山宁南中学2021-2022学年高二上学期开学考试数学(文)试题江苏省2021届高三新高考高考模拟样卷数学试题安徽省亳州市第一中学2020-2021学年高一下学期期末数学试题山东省嘉祥县第一中学2020-2021学年高一下学期6月份月考数学试题山西省运城市康杰中学2021-2022学年高二上学期入学测试数学试题2018届高三数学训练题(29):正弦定理、余弦定理 2020届陕西省商洛市丹凤中学高三第一次模拟考试数学(理)试题内蒙古北京八中乌兰察布分校2020-2021学年高二上学期期中(学科素养评估二)考试数学试题