在
中,角
的对边分别为
,且满足
.
(1)求角
的大小;
(2)求
的取值范围.
![](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/839e2d252268350fc291c05d60862055.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba69af59e628177be7b1480122ef90d.png)
15-16高二下·辽宁葫芦岛·阶段练习 查看更多[9]
2015-2016学年辽宁葫芦岛一中等校高二6月联考文数学卷辽宁省实验中学2017届高三下学期第六次模拟考试数学(文)试题辽宁省葫芦岛协作体2017届高三下学期模拟考试(6月)数学(文)试题辽宁省葫芦岛协作体2017届高三下学期模拟考试(6月)数学(理)试题2辽宁省实验中学2017届高三下学期第六次模拟考试数学(理)试卷【全国校级联考】辽宁省葫芦岛协作体2017届高三下学期模拟考试(6月)数学(理)试题辽宁省葫芦岛协作体2017届高三下学期模拟考试(6月)数学(理)试题1山东省济南市济钢高级中学2019-2020学年高三上学期10月月考数学试题上海市建平中学2017-2018学年高三上学期12月月考数学试题
更新时间:2016-12-04 16:09:01
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】在
中,内角A,B,C的对边分别为a,b,c,
.
(1)若
,
,求
的面积;
(2)已知
为边
的中线,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170bf3768e9e4e69cd3a1c91e15cdc7a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae2bb0c7cda18082db9610963661fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)已知
![](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/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】在△ABC中,角A、B、C所对边分别为a,b,c,已知
,且最长边的边长为1.
求:(1)角C的大小;(2)△ABC最短边的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9864cc4b8ab47b329cf351e955204ddd.png)
求:(1)角C的大小;(2)△ABC最短边的长.
您最近一年使用:0次
【推荐1】在
中,角
的对边分别为
.
(1)求
的大小;
(2)再从条件①、条件②、条件③这三个条件选择一个作为已知,使得
存在且唯一确定,求
边上高线的长.
条件①:
;条件②:
;条件③:
.
注:如果选择多个符合要求的条件分别解答,按第一个解答给分.
![](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/fedcea6177c46fa983743dfcd9d129a5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)再从条件①、条件②、条件③这三个条件选择一个作为已知,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe1fa37e8b316839f72f247cd5ba1c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7f7a27ebc253b6979d9ef422ff4024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2aef9e95aaba7d4e81528e4891eb96.png)
注:如果选择多个符合要求的条件分别解答,按第一个解答给分.
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】如图,四边形
中,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/11ee3fb7-cd05-4b33-821f-47b59aa4744b.png?resizew=179)
(1)求
的面积;
(2)求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc28e69c1ba0aac981256887f7dfa94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78002bca853929365a3f58082f3e7637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3827709157c7e1028027ce8062b2d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2efb46714efa6a13a121e2a7f89412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff9d0cc3cd2561c9d97b29edc09f197.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/11ee3fb7-cd05-4b33-821f-47b59aa4744b.png?resizew=179)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次