名校
1 . 在
中,角A,B,C所对的边分别为a,b,c,已知
.
(1)求角B的大小;
(2)若
,
,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcbf07443d54b25ab70a0f2d4093c75.png)
(1)求角B的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b2139fd92090785e08fbdf814c41f8.png)
![](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
7日内更新
|
745次组卷
|
4卷引用:河南省南阳市第一中学校2023-2024学年高一下学期5月月考数学试题
河南省南阳市第一中学校2023-2024学年高一下学期5月月考数学试题山西省临汾市名校联考2023-2024学年高一下学期5月质量检测数学试题金科新未来大联考2023-2024学年高一下学期5月质量检测数学试题(已下线)专题05 解三角形大题常考题型归类-期期末考点大串讲(人教B版2019必修第四册)
名校
2 . 在
中,角A,B,C的对边为a,b,c,已知
,
,
是等差数列.
(1)若a,b,c是等比数列,求
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7167cd55af72b5699802b277c33326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f7eaffde85b29b76ac40b5981ada36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17497a284ddace3ee09fc81c2302628f.png)
(1)若a,b,c是等比数列,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6c3e00a78921faf110ffb26d93bb2c.png)
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2024-06-11更新
|
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2卷引用:河南省南阳市社旗县第一高级中学2024届高三下学期三模理科数学试题
解题方法
3 . 在
中,内角
所对的边分别为
,且
.
(1)证明:
.
(2)过点
作
,垂足为
,且
,求
的值.
![](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/a4bffe16e2d2c3a124c8089d21af47d1.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee9080126c542e7b592cf9cdfbef5b2.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44413d558f342a8733cf19b7ca54ee64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bfa4de0d7e06e01880d94c69577286.png)
您最近一年使用:0次
解题方法
4 . 在△ABC中,角A,B,C的对边分别是a,b,c,若
.
(1)求角A的大小;
(2)若
,求△ABC面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c599b4d86e105cb4a01435a132a73157.png)
(1)求角A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7407d82d6e55b969d34e937ce36f3d.png)
您最近一年使用:0次
2024-04-19更新
|
1176次组卷
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3卷引用:河南省南阳市2023-2024学年高一下学期4月联考数学试卷
名校
解题方法
5 . 在
中,内角A,B,C所对的边分别为a,b,c,已知
,且
.
(1)求
面积的最大值;
(2)若
为边BC的中点,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c51131473c33047e57d61e0cdb1c282.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0285cfd2a3daa7e8ddae081ecdfd12b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2024-04-19更新
|
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3卷引用:河南省南阳市六校2023-2024学年高一下学期4月期中考试数学试题
河南省南阳市六校2023-2024学年高一下学期4月期中考试数学试题(已下线)模块三 专题2 解答题分类练 专题5解三角形(解答题)【人教B版】河南省商丘市2023-2024学年高一下学期5月联考数学试题
名校
解题方法
6 . 设
的内角A,B,C所对的边分别为a,b,c,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb07b861cdce44b072bc459daf09a1a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
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2024-04-19更新
|
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3卷引用:河南省南阳市六校2023-2024学年高一下学期4月期中考试数学试题
河南省南阳市六校2023-2024学年高一下学期4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)河南省商丘市2023-2024学年高一下学期5月联考数学试题
解题方法
7 . 在
中,角
的对边分别为
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3098abf29222fafabd79a63b1cf3dd.png)
.
(1)求角A;
(2)若
的平分线交
于点
,求
的长.
![](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/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3098abf29222fafabd79a63b1cf3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1dfdb7279c2daff0423fd5c13b249ef.png)
(1)求角A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94417b039ed2acc50fb0df83bcfbe56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
解题方法
8 . 在
中,内角A,B,C的对边分别为a,b,c,若
,
,且
.
(1)求内角A的大小;
(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/3aed3e746ba4faceab675c22f3d39da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d773542e9402b85137a25dde3ea9acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ebdc9bf8efd3f14d0c6ce508f02bb2.png)
(1)求内角A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825793ebd4bb376a09621f163ac990a9.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 . 在锐角
中,
的对应边分别是
,且
.
(1)求
的取值范围;
(2)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/60b27211caf664793cb3fab60f16e922.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e563e032dfdef69b0f357060c27bd4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc3cd5be6672b548534038b428932d9.png)
您最近一年使用:0次
2024-01-10更新
|
1325次组卷
|
4卷引用:河南省南阳市第一中学校2024届高三上学期期末模拟数学试题
河南省南阳市第一中学校2024届高三上学期期末模拟数学试题新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题湖北省武汉市马房山中学2024届高三上学期期末综合测评数学试题(已下线)专题1.11解三角形常考大题归类-重难点突破及混淆易错规避(人教A版2019必修第二册)
10 . 在
中,角
,
,
的对边分别为
,
,
,且满足_____.
(从以下两个条件中任选一个补充在上面横线上作为已知,将其序号写在答题卡的横线上并作答.)
条件①:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d22b31bda922ba80b3d55afc0c9bea.png)
条件②:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f301949e79f697a216b84fbc679137.png)
(1)求角
;
(2)若
为锐角三角形,
,求
面积的取值范围.
![](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)
(从以下两个条件中任选一个补充在上面横线上作为已知,将其序号写在答题卡的横线上并作答.)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d22b31bda922ba80b3d55afc0c9bea.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f301949e79f697a216b84fbc679137.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/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-11-29更新
|
301次组卷
|
2卷引用:河南省南阳市2023-2024学年高三上学期期中数学试题