在
中,内角
所对的边分别为
,且满足
.
(1)求角
;
(2)已知
,
的外接圆半径为
,求
的边
上的高
.
![](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/93c037dc0cd6e9b55a426f1acc1c22de.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8641de131e86041bb4cee948569cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83dbfddc6f98548699ed581e8c8608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
22-23高三上·广东广州·期中 查看更多[7]
广东省广州市增城中学、广东华侨,协和中学三校2023届高三上学期期中联考数学试题(已下线)第08讲 正弦定理和余弦定理5种常见题型(2)(已下线)第09讲 解三角形中解答题4种基础题型陕西省咸阳市武功县普集高级中学2023届高三5月校模考(二)数学(理)试题四川省德阳市第五中学2023-2024学年高三上学期9月月考数学(理)试题四川省德阳市第五中学2023-2024学年高三上学期9月月考数学(文)试题陕西省西安市长安区第一中学2023-2024学年高二下学期第一次教学质量检测数学试卷
更新时间:2022-11-26 12:49:39
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】记
的内角
所对的边分别为
,已知
.
(1)求证:
;
(2)若
的周长为20,面积为
,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/20fb9bf557d5b109673d62690a4a1ed5.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428d8ba5d74557ac0660343e61b3bd8f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e4123975f257306440158659634c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c181f86de3c96a7ef7a1a04c3a438f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】已知函数
.
(1)求函数
的最小正周期;
(2)求函数
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1721ca364a7f2687a811bbdf15d3c37.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1474de9bb2b723887202ebbf46304de8.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐1】已知向量
,
,函数
.
(Ⅰ)求
在区间
上的零点;
(Ⅱ)在△ABC中,角A,B,C的对边分别为a,b,c,
,
,△ABC的面积
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的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3457ecfd6c4ea34e8ec2bff948e495e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7c45688f346e20329376b9f187f9682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0466636333c3743541774e01d836afaf.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15641191c56b4df40e30f0b10c30243a.png)
(Ⅱ)在△ABC中,角A,B,C的对边分别为a,b,c,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360b25bb26627cd568977ee81d97fe36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2dd89c37b60b4596ac30e339aa0000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】在
中,
,
,
分别是角
,
,
的对边,且
.
(1)证明:
;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/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/31681893ee1776925fd5e813662360b5.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378ef7c71791ea5d7be880add2dd5f95.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9b5530869d7537e5fc7c388de7da2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次