1 . 已知向量
,
,函数
的最小正周期为
.
(1)求函数
的最大值;
(2)已知
的三个内角A,B,C的对边分别为a,b,c,满足
且
,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1221fe478efc3870332553a4c390ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7f3f01ad7f444c2f012f17e4d39806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a0df8518313424dfcff231d430336d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3819e3abe5ba10dc15142a6a8a616ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2 . 在
中,内角
的对边分别为
,
,
,且
.
(1)求角
的大小;
(2)若
是锐角三角形,
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.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/6c110a7bccff40dfca1eab0f46b68fee.png)
(1)求角
![](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/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
3 . 在
中,角
,
,
所对的边分别为
,
,
,已知
,
,
.
(1)求角
;
(2)求
外接圆的半径.
![](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/3a395d3c8e0842462c8bad5ebf986bc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4694e96079ee906902109e51a2a446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0e7b1dc475b1dfad0f13b20c2d32b9.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
4 . 在
中,角
所对的边分别为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4bb00f4525d730c66119ea1972040d.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e579cdc3d956599ac88d9677dc8ceae6.png)
.且
.
(1)求
;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f2599ca8b6b683e57a82699c8b1ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4bb00f4525d730c66119ea1972040d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e609a87936286e108311bf60e9865d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e579cdc3d956599ac88d9677dc8ceae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf51c0d1e0356f794fc4153094019575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505a2b5af4e1b37f200164562c980007.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf2d3c6d20ec680b233344a0be893ef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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5 . 已知函数
.
(1)求函数
的单调减区间;
(2)若
,
,
,且
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e12b71638d500c5f388ba4265140b5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f102439ebd1efd422f04209ecec2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa210ee8b373cc1be92064e1c0a7f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e86f1f12f2f64e1134f6592fe00065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aab97305ff9af32635a03a5ad1bf9bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fe57d4fbae536de2e641d9d349fcf1.png)
您最近一年使用:0次
2022-05-10更新
|
354次组卷
|
2卷引用:四川省成都外国语学校2021-2022学年高一下学期期中考试数学(理)试题
6 . 在△ABC中,角A、B、C的对边分别a、b、c,且
.
(1)求cos A的值;
(2)若a =
,b = 5,求向量
在
方向上的投影.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af940c53803c4db5182b56fc7336db29.png)
(1)求cos A的值;
(2)若a =
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305d5f36a9fdbc840161b36563923195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
您最近一年使用:0次
解题方法
7 . 已知
中,
,
,
.
(1)证明:
;
(2)求
的值和
的面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f309716ea5930332a921f4f59279293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552a42bf36e74297ac1e179c8973a1cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf032c56ca73d64115300861b7ecd8f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb92d5fb092368cf88044b6a18ed688.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710ed0330941119383adb99d1f0701e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
8 . 有一块半径为2,圆心角为45°的扇形钢板,准备从这个扇形中切割出一个矩形(矩形的各个顶点都在扇形的半径或弧上,且矩形的一边在扇形的半径上),则这个内接矩形的面积最大值为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf5b5d6ad24be7eb370869fcb60b62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7591effa5b4463ae5e34ec8e54352b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-07更新
|
3354次组卷
|
14卷引用:四川省仁寿第一中学校南校区2022-2023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2022-2023学年高一下学期期中考试数学试题 广东省汕头市潮阳一中明光学校2024届高三上学期11月期中数学试题江苏省七市(南通、泰州、扬州、徐州、淮安、连云港、宿迁)2022届高三下学期第三次调研测试数学试题广东省茂名市2022届高三下学期调研(三)数学试题(已下线)第11练 诱导公式(已下线)突破5.3 诱导公式(重难点突破)-【新教材优创】突破满分数学之2022-2023学年高一数学重难点突破+课时训练 (人教A版2019必修第一册)(已下线)专题18 三角恒等变换-1(已下线)专题5.5 诱导公式-重难点题型精讲-2022-2023学年高一数学举一反三系列(人教A版2019必修第一册)广东省东莞市七校2023届高三上学期12月联考数学试题重庆市西南大学附属中学校2023届高三下学期拔尖强基定时2月质检数学试题重庆市石柱回龙中学校2024届高三上学期第一次月考数学试题江苏省兴化市楚水实验学校、兴化一中等四校2023-2024学年高三上学期第一次阶段测试数学试题(已下线)专题12 同角三角函数关系与诱导公式(已下线)第五章 三角函数单元测试基础卷-人教A版(2019)必修第一册
10 . 已知
中,角A、B、C对应的边分别为a、b、c,若
,且满足
.
(1)求角A;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f13d2074c25f15e1ebc748ba9aa336.png)
(1)求角A;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c93a7bf0682398f09fa36fd212d9f2.png)
您最近一年使用:0次
2022-05-05更新
|
2015次组卷
|
4卷引用:四川省成都市郫都区2021-2022学年高一 下学期期中考试理科数学试题