1 . 从以下三个条件中任选一个,补充在下面问题中,若问题中的三角形存在,求
的值;若问题中的三角形不存在,说明理由.
①
,②
,③
.
问题:在
中,角
,
,
所对的边分别为
,
,
.已知
,
,__________.
注;如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a60ac5588aca10a2c429e104049d1924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b3132d434668cab754f1540a7ae4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b92c467f114ad8d970c6f5daa237ed9.png)
问题:在
![](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/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091d60cf712232fb036418daebb63196.png)
注;如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次
2021-07-10更新
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220次组卷
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2卷引用:安徽省江南五校2020-2021学年高一下学期阶段性大联考数学试题
名校
解题方法
2 . 已知锐角
中,角
,
,
所对的边分别为
,
,
,
.
(1)求
的值;
(2)若
,求
面积
的取值范围.
![](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/c1d0a66cd2a73d712c206ea64379026c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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2021-06-04更新
|
720次组卷
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3卷引用:安徽省宿州市泗县第一中学2021届高三下学期最后一卷理科数学试题
名校
解题方法
3 . 在
中,
,
,
分别是角
,
,
的对边长,已知
,
,现有以下判断:①
不可能等于15;②
;③作
关于
的对称点
,则
的最大值是
,请将所有正确的判断序号填在横线上______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/aa1466856bf2570685d3629c1f813748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/277fb0c604336b04db1ec74eb25cc33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96014ddef440cebceb316dd3861bf55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e56e21a9e25f762fbf4b1a143b128aa.png)
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2021-06-03更新
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257次组卷
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2卷引用:安徽省宿州市泗县第一中学2020-2021学年高一下学期第三次月考数学试题
名校
4 .
的内角
,
,
的对边分别为
,
,
,已知
.
(1)求
;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/7e80e7d96356f505eb704558a966517d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46aac05f079db1b20f15d1627b2661d8.png)
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2021-05-31更新
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668次组卷
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2卷引用:安徽省合肥市第六中学2021届高三下学期高考考前诊断暨预测卷理科数学试题
5 . 已知
的内角
,
,
的对边分别为
,
,
,若
,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/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/86af191fe066088fab3962597881e2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff1a4caf9b4e210fb2c3b309c6d9e375.png)
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2021-05-16更新
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385次组卷
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2卷引用:安徽省滁州市定远县育才学校2021届高三下学期最后一模理科数学试题
解题方法
6 . 已知函数
的最小正周期为
.在
中,角
、
、
所对的边长分别是
、
、
.
,
,
的面积为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2014a59ed89a7c3207d7e23124dc9d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](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/42a30cdeccc312028502c30ca324d62e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730cd1be2c6d833ca83658f8fb778825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-05-07更新
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368次组卷
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2卷引用:安徽省宣城市广德市实验中学2021届高三下学期4月教学质量测评文科数学试题
解题方法
7 . 若角
顶点与原点重合,始边与
轴非负半轴重合,终边在直线
上,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f281814a940820e52ec332185871e22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402372337bab99235443eb5395e7cfc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-05-07更新
|
670次组卷
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3卷引用:安徽省宣城市广德市实验中学2021届高三下学期4月教学质量测评理科数学试题
安徽省宣城市广德市实验中学2021届高三下学期4月教学质量测评理科数学试题华大新高考联盟2021届高三4月份教学质量测评数学(理)试题(已下线)考点09 任意角与弧度制及任意角的三角函数-备战2022年高考数学(理)一轮复习考点微专题
名校
8 . 在
ABC中,内角A,B,C的对边分别是a,b,c,已知b=acos C+
csin A,点M是BC的中点.
(1)求A的值;
(2)若a=
,求中线AM长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
(1)求A的值;
(2)若a=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
您最近一年使用:0次
2022-01-09更新
|
665次组卷
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8卷引用:安徽省芜湖市华星学校2021届高考数学(文)仿真模拟试题(二)
安徽省芜湖市华星学校2021届高考数学(文)仿真模拟试题(二)安徽省十四校联盟2019-2020学年高三上学期11月段考理科数学(已下线)专题02解三角形-测案(理科)第一篇 热点、难点突破篇-《2022年高考理科数学二轮复习讲练测》(全国课标版)2020届广东省广州市执信中学高三2月月考数学(理)试题2020届湖北省黄冈中学高三下学期2月月考数学(理)试题湖北省黄石二中2019-2020学年高三下学期3月线上测试理科数学试题(已下线)专题02解三角形-测案(文科)第一篇 热点、难点突破篇-《2022年高考文科数学二轮复习讲练测》(全国课标版)湖南省株洲市第二中学2022-2023学年高三上学期12月教学质量检测数学试题(B)
名校
解题方法
9 .
内角
,
,
的对边分别为
,
,
,
,则角
的值为__________ ;若
,
的面积为
,则边长
的值为__________ .
![](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/f76ac7f220aec1a58ccbd9dcc635ed94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d803e27871810c6b8a7d6169144dd61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2021-04-14更新
|
743次组卷
|
4卷引用:安徽省亳州市第一中学2020-2021学年高一下学期4月月考数学试题
10 . 已知函数
,
.
(1)求
的单调递增区间和最值;
(2)若函数
有且仅有一个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781e2ee585c9d4471e63f33055f02059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039f9392112593405d4c0f1bea7d31f3.png)
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