1 . 已知函数
部分图象如图所示,下列说法不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7743895a7a1d924507c3b30e654f6743.png)
A.![]() ![]() |
B.![]() ![]() |
C.将函数![]() ![]() ![]() |
D.若方程![]() ![]() ![]() |
您最近一年使用:0次
解题方法
2 . 在锐角
中,角
所对的边分别为
,且满足
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec3f79448524d6848be51fdd5c7a150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f881bd746cb2e0ded5d7a01baaa4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99aa40d7a60b95165c07ef5b3a53fe46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b645a9d1180fa8a437284635bb97dc6e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知
为坐标原点,对于函数
,称向量
为函数
的相伴特征向量,同时称函数
为向量
的相伴函数.
(1)记向量
的相伴函数为
,若
,且
,求
的值;
(2)设
,试求函数
的相伴特征向量
,并求出与
方向相同的单位向量;
(3)已知
,
,
为函数
的相伴特征向量,
,请问在
的图象上是否存在一点
,使得
?若存在,求出
点的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c6f29b2b1955715616003d51d8b77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71875d057956669becc2ffcc0cee7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(1)记向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d63d98bc0e9bf568a3b16a54e06709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbcea46594840e7b95e2e848df88c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ee2d9c25f1e691714cfd7a21dd87d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455feb1477d9ee705852f62d9b9cac4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6653dbf5ce692ec226715bedccb66b9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58877e557df4bb24758d6843ae7202a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f0f05f32f37281ed102b9a78648014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8191c207ff6b3b53dcced5f5cfbca0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1428037efcc8068ecc8b4cd2279568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b929fe0f9c13dd6dfabca91a1a4aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
4 . 在①
,②
中任选一个作为已知条件,补充在下列问题中,并作答.
问题:在
中,角
所对的边分别为
,已知_________.
(1)求
;
(2)若
,且
,求
的周长.
注:若选择不同条件分别作答,则按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43dbbad3251a9114cbdf5948237225bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5cebb82cc09cb0ab0c50a268edb9bee.png)
问题:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec3f79448524d6848be51fdd5c7a150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6129fbf40a950fc8c516f0abaab21957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f76c77679d424630c035bfabb2fa98b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
注:若选择不同条件分别作答,则按第一个解答计分.
您最近一年使用:0次
解题方法
5 . 在锐角
中,角
的对边分别为
,
的面积为
,若
,则
的取值范围为( )
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ac52972d1086a8608e976500bcbadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aae1dc870a60a2070469d556deb472.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知函数
,若锐角
的内角
所对的边分别为
,且
.
;
(2)求
的取值范围;
(3)在
中,
,其外接圆
直径为
(如图),
,求
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee930fb43cd595269e55909cf86d57a.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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbacffbd6184d83356dc34290522529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb22da3a9219779b7b2e66be4757ef8.png)
您最近一年使用:0次
名校
解题方法
7 . 在
中,角
的对边分别为
,D为
的中点,已知
,
,且
,则
的面积为( )
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72a16fa73290a41a43e572a1874b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92ab9594f0113def704b413553345a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-14更新
|
1722次组卷
|
6卷引用:山东省青岛市第五十八中学2023-2024学年高一下学期第二次阶段性检测数学试题
山东省青岛市第五十八中学2023-2024学年高一下学期第二次阶段性检测数学试题(已下线)专题03 高一下期末考前必刷卷01(基础卷)-期末考点大串讲(人教A版2019必修第二册)(已下线)专题05解三角形压轴小题归类(1) -期末考点大串讲(苏教版(2019))贵州省遵义市2024届高三第三次质量监测数学试卷(已下线)江苏省盐城市盐城中学2024届高三全仿真模拟考试数学试题辽宁省沈阳铁路实验中学2024届高三第八次模拟考试数学试题
解题方法
8 . 已知
中,角
所对的边分别为
,若
,且角
为钝角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983e9240e850c2618a03c12ef65b32a4.png)
________________ ,
的取值范围是________________ .
![](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/1805bef114e6dca3cb833801cbe84f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983e9240e850c2618a03c12ef65b32a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc13df9d7aaf293ad8d050ee17e0df9.png)
您最近一年使用:0次
名校
解题方法
9 . 鼎湖峰,矗立于浙江省缙云县仙都风景名胜区,状如春笋拔地而起,其峰顶镶嵌着一汪小湖.某校开展数学建模活动,有建模课题组的学生选择测量鼎湖峰的高度,为此,他们设计了测量方案.如图,在山脚A测得山顶P得仰角为45°,沿倾斜角为15°的斜坡向上走了90米到达B点(A,B,P,Q在同一个平面内),在B处测得山顶P得仰角为60°,则鼎湖峰的山高
为( )米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-05-11更新
|
504次组卷
|
5卷引用:山东省青岛第一中学2023-2024学年高一下学期4月阶段性检测数学试卷
山东省青岛第一中学2023-2024学年高一下学期4月阶段性检测数学试卷浙江省2023-2024学年高一下学期3月四校联考数学试题江苏省?邮市第?中学2023-2024学年高一下学期4月阶段测试数学试卷(已下线)四川省成都外国语学校2024届高考模拟文科数学试题(三)(已下线)3.5 解三角形的应用(高考真题素材之十年高考)
名校
解题方法
10 . 在
中,内角A,B,C所对的边分别为a,b,c,且
.
(1)求角A的大小;
(2)若
.
(i)求
的值;
(ii)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e376613966c52037e6a3f44f358843.png)
(1)求角A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b917f04e136de0db40dcd6f2918d27.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-05-08更新
|
1124次组卷
|
3卷引用:山东省济宁市第一中学2023-2024学年高一下学期6月月考数学试题