名校
解题方法
1 . 在
中,内角
,
,
的对边分别为
,
,
,
,
,则下列说法正确的是( )
![](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/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
A.若![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024-05-29更新
|
510次组卷
|
2卷引用:福建省莆田第二十五中学2023-2024学年高一下学期期中考试数学试题
名校
解题方法
2 . 记
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求角
的大小;
(2)若
点在线段BC上,且AD平分
,若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5b8ff06f0bc798144f4dab6ab127ce.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d78524f98b01fa1dadfd277939665b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
3 . 在
中,角A,B,C所对的边分别为a,b,c,请从下列条件中选择一个条件作答:(注:如果选择多个条件分别作答,则按第一个解答计分.)
①
②
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd161755aa7f1e0c4313a2327cb7e7b.png)
(1)求A的大小
(2)若
为锐角三角形,求
的取值范围;
(3)若
,点A,B,C分别在等边
的边DE,EF,FD上(不含端点),若
面积的最大值为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb639420971554d620202a8880357f3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c390057bfe42a58d0cfd4c33f095d287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd161755aa7f1e0c4313a2327cb7e7b.png)
(1)求A的大小
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ea513ef4c8fc4d8c31eff498740680.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e56e21a9e25f762fbf4b1a143b128aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
解题方法
4 . 在①
,②
,③
,这三个条件中任选一个,补充在横线上,并加以解答.
在
中,角
,
,
的对边分别为
,
,
,______.
(1)求角
;
(2)若
是锐角三角形,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a11ab32b33fb607bbf3f4f498b81e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4542e5dfa3702fb2824682f0731a1c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79d78cfefee4598cfb51ae73ad6d0e.png)
在
![](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)
(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/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
5 . 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)
您最近一年使用:0次
2024-05-23更新
|
1305次组卷
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4卷引用: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
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(已下线)专题03 解三角形(2)-期末考点大串讲(苏教版(2019))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
6 .
的内角
、
、
的对边分别为
、
、
,则下列说法正确的是( )
![](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)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2024-05-22更新
|
680次组卷
|
3卷引用:福建省莆田第五中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
7 . 记
的内角
的对边分别为
.已知
,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/2a92cfa82ed0e7652b482635e72a84ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc940e481607daedc1e83e98ec3bd4c0.png)
您最近一年使用:0次
名校
解题方法
8 . 记
的内角
的对边分别为
,已知
,下列结论正确的是( )
![](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/b06e0ee30d7d60f67fb7c1d9372d8682.png)
A.![]() |
B.![]() |
C.![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
解题方法
9 . 已知
的内角
所对的边分别是
,点
是
的中点.若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3853fbf4b48ed1e9782c3ac06952f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0a4fb860f096a4aa44b17ff22ad87f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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2024-05-14更新
|
347次组卷
|
2卷引用:福建省部分优质高中2023-2024学年高一下学期第二次阶段性检测数学试题
名校
解题方法
10 . 在
中,角
的对边分别为
.
(1)求
;
(2)若
的面积为
边上的高为1,求
的周长.
![](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/718f82dbdf66ec773e708b98d548f487.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce9dfd45b02825a135f7a3bce1373c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-05-13更新
|
2858次组卷
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4卷引用:福建省福州市部分学校教学联盟2023-2024学年高一下学期期末模拟考试数学试题
福建省福州市部分学校教学联盟2023-2024学年高一下学期期末模拟考试数学试题江苏省南通、扬州、泰州七市2024届高三第三次调研测试数学试题(已下线)专题03 解三角形问题总结-《期末真题分类汇编》(江苏专用)上海市建平中学2024届高三下学期三模考试数学试题