名校
1 . 已知
内角
的对边分别为
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd623ea765c80b3ba260e99f3504f481.png)
(1)求
的取值范围
(2)求
内切圆的半径的最大值
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd623ea765c80b3ba260e99f3504f481.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
的内角A,B,C的对边分别为a,b,c,向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d94f3cbe1c563cedea29cf05c7feee.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915d0f621785da734a5c5c9da0f39ada.png)
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f643616cd3d2459c506c8647641f081f.png)
,
外接圆面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e22bcc5c945421216c1cdba6453ba8.png)
(1)求A;
(2)求
周长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d94f3cbe1c563cedea29cf05c7feee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24b9afb01483a5a90c9fe21b9cefd80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915d0f621785da734a5c5c9da0f39ada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8273c260813c85abf25b7ce7163d8cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f643616cd3d2459c506c8647641f081f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4537e903a5e152e6d69b0aa0e6e648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e22bcc5c945421216c1cdba6453ba8.png)
(1)求A;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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7日内更新
|
1219次组卷
|
4卷引用:专题03 解三角形(2)-期末考点大串讲(苏教版(2019))
(已下线)专题03 解三角形(2)-期末考点大串讲(苏教版(2019))福建省厦门市同安第一中学2023-2024学年高一下学期第一次月考数学试卷海南省海口市海南中学2023-2024学年高一下学期第二次月考(6月)数学试题(已下线)专题05 解三角形大题常考题型归类-期期末考点大串讲(人教B版2019必修第四册)
名校
解题方法
3 . 设锐角
的三个内角
的对边分别为
,且
,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/80c23f8476e0500d39d649e2987d0769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7日内更新
|
270次组卷
|
3卷引用:专题4 解三角形中的最值与范围问题【练】(高一期末压轴专项)
(已下线)专题4 解三角形中的最值与范围问题【练】(高一期末压轴专项)四川省成都石室中学2024届高三下学期高考适应性考试(一)理科数学试题四川省成都石室中学2024届高三高考适应性考试(一) 文科数学试题
名校
解题方法
4 . 在锐角
中,内角
,
,
的对边分别为
,
,
,且满足
.则
的取值范围为( )
![](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/820ceff02461fde56a0db6580dd55039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b45f1b69668bbb9a7656368b81dd3e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 在
中,角A,B,C所对的边分别为a,b,c,已知
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541b16fdc230c1bf727de73ba0aea2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019eb94a6a2b38308811470d860e1a20.png)
A.若![]() ![]() | B.若![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-05-11更新
|
859次组卷
|
4卷引用:第1套 全真模拟卷 (中等)【高一期末复习全真模拟】
(已下线)第1套 全真模拟卷 (中等)【高一期末复习全真模拟】甘肃省天水市2023-2024学年高一下学期5月期中数学试题江苏省宿迁市泗阳县实验高级中学2023-2024学年高一下学期第二次调研测试(5月)数学试题四川省南充市西充中学校2023-2024学年高一下学期5月月考数学试题
名校
解题方法
6 . 在锐角三角形
中,已知
,
,
分别是角
,
,
的对边,且
,
,则三角形
的周长的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/c5a45a63decd6b4d1dd538b1eefc2f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-11更新
|
667次组卷
|
6卷引用:专题03 解三角形(2)-期末考点大串讲(苏教版(2019))
(已下线)专题03 解三角形(2)-期末考点大串讲(苏教版(2019))(已下线)专题05解三角形压轴小题归类(2) -期末考点大串讲(苏教版(2019))(已下线)核心考点3 解三角形与实际应用 B提升卷 (高一期末考试必考的10大核心考点) (已下线)专题05 解三角形(2)-期末考点大串讲(人教B版2019必修第四册)福建省莆田第一中学2023-2024学年高一下学期期中考试数学试题福建省福州市闽侯县第一中学2023-2024学年高一下学期第二次月考(5月)数学试题
名校
7 . 如图,四边形
中,
,
,
,
,记
与
的长度和为
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d81d732204a3c2384a27606f858677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0434c0177ca5c88ec129bd4cc13f4a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcce2554f37a0ad64cdefce7ab3e5202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae139b51956b9281d73d9ba82b875e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 在
中,角
、
、
的对边分别为
、
、
,已知
.
(1)求角
的大小;
(2)若
的面积为
,求
的最小值,并判断此时
的形状.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/cf13601b3a419ecda6d2ea017f2d6a6b.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46e1b698e04835059551ac228f5c5c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
您最近一年使用:0次
名校
解题方法
9 . 定义函数
的“源向量”为
,非零向量
的“伴随函数”为
,其中O为坐标原点.
(1)若向量
的“伴随函数”为
,求向量
;
(2)在△ABC中,角A、B、C的对边分别为a、b、c,若函数
的“源向量”为
,且已知
,
;
(ⅰ)求
周长的最大值;
(ⅱ)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651055fdc939ef20d1e92e82e6b32f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cae27fcabba8073b6e58c759b2cc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cae27fcabba8073b6e58c759b2cc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651055fdc939ef20d1e92e82e6b32f36.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f1f267ba3dea8922b64420e8b352953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(2)在△ABC中,角A、B、C的对边分别为a、b、c,若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c333a66f34c8175bc4bf13199e75abf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c12b68c68df107018eca207bbc5a6344.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1db906824e53395f016622f21efdb11.png)
您最近一年使用:0次
2024-05-07更新
|
772次组卷
|
5卷引用:专题03 向量的数量积-期末考点大串讲(人教B版2019必修第三册)
(已下线)专题03 向量的数量积-期末考点大串讲(人教B版2019必修第三册)(已下线)第6题 向量新定义题(高一期末每日一题)河南省实验中学2023-2024学年高一下学期期中考试数学试题四川省仁寿第一中学校南校区2023-2024学年高一下学期5月月考数学试题(已下线)期末押题卷02(考试范围:苏教版2019必修第二册)-【帮课堂】(苏教版2019必修第二册)
名校
解题方法
10 . 在
中,角
的对边分别为
,若
,
,则
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/d786bbb41453cde91a48b7292937e8be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
您最近一年使用:0次