名校
解题方法
1 . 设
的内角
,
,
的对边分别为
,
,
,
.
(1)若
,
的面积为
,求
;
(2)若
,求
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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dbc691d8d0d669dd794a29b79c1769.png)
![](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/071a7e733d466949ac935b4b8ee8d183.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0a2567c3ccc4f2f211e26c9dd13f68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c52b5346335532bdbda8de5b9908c8d.png)
您最近一年使用:0次
解题方法
2 . 在
中,内角
,
,
的对边分别为
,
,
,且满足
.
(1)求
;
(2)若内角
的角平分线交
于
点,且
,求
的面积的最小值.
![](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/c06d7c88e50956215a90219d77020b92.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若内角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-10-08更新
|
1508次组卷
|
3卷引用:浙江省杭州市富阳区实验中学2023-2024学年高二上学期10月月考数学试题
解题方法
3 . 在
中,角
所对的边分别为
,
,
.已知
.
(1)求角
的值;
(2)若
,且
,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/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/1e87af5f22d0c613c7b05bf950a41c9e.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dc3b630783e11e4cf481396d90acda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd17f81ff4c76548945c56e4f211fee1.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
4 . 已知
的内角A,B,C的对边分别为a,b,c,
.
(1)求A;
(2)若
,求
中BC边中线AD长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866489c57088a1d233da0012d838d69c.png)
(1)求A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002186264541533d9cfca0616a9a291b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-09-19更新
|
1685次组卷
|
5卷引用:浙江省杭州市s9联盟2022-2023学年高二下学期期中数学试题
浙江省杭州市s9联盟2022-2023学年高二下学期期中数学试题广东省汕头市金山中学2023-2024学年高二上学期期中数学试题黑龙江省双鸭山市第一中学2023-2024学年高三上学期10月月考数学试题(已下线)第14讲 拓展二:三角形中线,角平分线问题-【帮课堂】(人教A版2019必修第二册)(已下线)重难点专题06 解三角形图形类问题-【帮课堂】(苏教版2019必修第二册)
5 . 已知函数
.
(1)求函数
的单调递增区间;
(2)若
的外接圆半径为1,且
,
,求BC边上的中线长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad06fe0a619d6494043cc879dd85ebed.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0d5cf8c22d0cf93274939d92963665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541b16fdc230c1bf727de73ba0aea2a8.png)
您最近一年使用:0次
名校
解题方法
6 . 已知数列
中
,关于
的函数
有唯一零点,记
.
(1)判断函数
的奇偶性并证明;
(2)求
;
(3)求证:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f4d4fa1b049045d58a9571a0709004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072010cccaa77474c07b66816ce4ae92.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f4d4fa1b049045d58a9571a0709004.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f8c399c162dbd37d2aa304a4a3a1fd.png)
您最近一年使用:0次
名校
解题方法
7 . 在
中,三个内角
所对的边分别是
,
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3930b75e007002803b2a99bfafedac9d.png)
.
(1)求
;
(2)当
取最大值时,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/ce1a106e4f1a3d3f9efddb4dc4c63664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3930b75e007002803b2a99bfafedac9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cb6860eaa4896e4dd50ea4f99fac7c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451be539a00c5a0fa9e00fc9bf4c39fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-09-07更新
|
988次组卷
|
5卷引用:浙江省宁波市北仑中学2023-2024学年高二上学期期初考试数学试题
名校
8 . 如图,在中,
,
,点D,E分别在AB,AC上且满足
,
,点F在线段DE上.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9023a0297f4d7a5eb085df96be4b3de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d463b66eacd0205c0f1301dbb8d9aa91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a989aa942219970ec11ccd6ab186d69b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca9839fb275ef28c489bd8bb4b120fe.png)
您最近一年使用:0次
2023-09-04更新
|
207次组卷
|
2卷引用:浙江省A9协作体2023-2024学年高二上学期暑假返校联考数学试题
解题方法
9 . 在
中,内角A,B,C所对的边分别为a,b,c,且
.
(1)求角A;
(2)若
,
,
的角平分线交BC于D,求AD的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46243378241c86b0bb3e6afc3ffdee67.png)
(1)求角A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
您最近一年使用:0次
10 . 已知函数
,
.
(1)求
的最小正周期;
(2)将函数
的图象向右平移
个单位长度后,得到
的图象,求
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2758e2503b5e5687ef32220f30b1a818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
您最近一年使用:0次