解题方法
1 . 在
中,内角
的对边分别为
.
(1)求
;
(2)若
,点
在边
上,且
,求
面积的最大值.
![](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/764cdc5a02526e94b655c91288b7e903.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](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/ebc89442384b8022b2d47cd596a3177f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
2023-11-09更新
|
511次组卷
|
2卷引用:重庆市渝中区2024届高三上学期期中数学试题
名校
解题方法
2 . 已知
的内角A,B,C所对的边分别为a,b,c,
,
.
(1)若
,求
的面积;
(2)若D为
所在平面内一点,且D与B不在直线AC的同一侧,
,求四边形ABCD面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696bf7c8ee1492b2ad2bb74d28ea8d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60fcc330a41c7e8daf2672b11477505a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
(2)若D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d008e0da643d1e050579557bbeeff92.png)
您最近一年使用:0次
名校
解题方法
3 . 设
中角
所对的边分别为
,
,
,
为
边上的中线;已知
且
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
______ .
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e408c1ae7f1c237ba8323daa6f993fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab277f04a083623646c31dcab4fa6598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
您最近一年使用:0次
2023-07-05更新
|
937次组卷
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4卷引用:重庆市巴蜀中学校2022-2023学年高一下学期期末数学试题
名校
解题方法
4 . 在
中,角A,B,C所对的边分别是a,b,c,且
.
(1)求角B的大小;
(2)若
是锐角三角形,求
的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c71d4c524fdced548f8d11c1df9050.png)
(1)求角B的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-05-19更新
|
1450次组卷
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3卷引用:重庆市巴蜀中学校2022-2023学年高一下学期期中数学试题
名校
解题方法
5 . 在△ABC中,角A,B,C的对边分别为a,b,c,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37238084e3ac028b0378bff6ab377c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd89c9d9f5e8f075b27c2e12eb4723bb.png)
A.0 | B.1 | C.2 | D.![]() |
您最近一年使用:0次
2023-02-22更新
|
1359次组卷
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3卷引用:重庆市巴蜀中学2023届高三高考适应性月考(六)数学试题
名校
解题方法
6 . 在
中,内角A的平分线与边BC交于点D且
,
,若
的面积
,则AD的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea43cdd29ad1e9d4658072c68097aa74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ff9d4fdd0d176042505b7aac016852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab35459095da20a29d2fddf50a72cbf3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-13更新
|
1457次组卷
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5卷引用:重庆市第二十九中学2023-2024学年高二上学期10月月考数学试题
重庆市第二十九中学2023-2024学年高二上学期10月月考数学试题(已下线)第15讲 解三角形中角平分线中线内切外接圆问题(已下线)11.2 正弦定理-【题型分类归纳】2022-2023学年高一数学同步讲与练(苏教版2019必修第二册)重庆市南开中学校2021-2022学年高一下学期期末数学试题(已下线)第09讲 拓展四:三角形中周长(定值,最值,取值范围)问题 (高频考点精讲)