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1 . 在锐角三角形ABC中,若
,且满足关系式
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca56db35ba6aee544a0f672bae36b55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb592145bb345e5dc79afeb5d98089bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-04-25更新
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2029次组卷
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5卷引用:江西省赣州市崇义县崇义中学2019-2020学年高一下学期开学考试数学(文)试题
江西省赣州市崇义县崇义中学2019-2020学年高一下学期开学考试数学(文)试题天津市静海区第一中学2019-2020学年高一下学期期中考试数学试题湖南省常德市临澧县第一中学2019-2020学年高二下学期期中数学试题天津市经济技术开发区第一中学2020-2021学年高一下学期期中数学试题(已下线)专题4-2 正余弦定理与解三角形小题归类1-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)
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2 . 在
中,角
,
,
的对边分别为
,
,
,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d09196d6643e64ab5b9b5df02d98a1.png)
(Ⅰ)若
,求
;
(Ⅱ)若
,
,求
的值.
![](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/43d09196d6643e64ab5b9b5df02d98a1.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18d8f2c35a17b672e2646cdd4775e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c631f55f2b59c07c4654f1fd2590ec.png)
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2020-04-14更新
|
202次组卷
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3卷引用:江西省永新中学2021-2022学年高二上学期开学考试数学(理)试题
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3 . 已知
中,内角
所对边分别为
,若
.
(1)求角
的大小;
(2)若
, 求
的面积S.
![](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/3d06c1c347d9cc59e3b0955094cceb7d.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28881a3b3e4bddded432b29980a14a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2020-01-12更新
|
736次组卷
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3卷引用:江西省赣州市崇义县崇义中学2019-2020学年高一下学期开学考试数学(文)试题
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4 . 已知函数
.
(1)求
的最小正周期;
(2)求
在
上单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fdcddd51f53ae8ec83f29ffa4a654d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
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2019-07-04更新
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3930次组卷
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5卷引用:江西省南昌市八一中学2019-2020学年高一5月开学考试数学试题
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5 . 已知函数
.
(1)求
的最小正周期;
(2)设
的内角
,
,
的对边分别为
,
,
,且
,
,若
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf578e94eefb597733e93ac854a9820.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](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/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb925a47e3d93fc09e50e8357f4e8620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04020b327815b191d0c1a9591aa1d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2019-06-18更新
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5卷引用:江西省赣州市南康区2019-2020学年高二下学期开学考试数学(理)试题
江西省赣州市南康区2019-2020学年高二下学期开学考试数学(理)试题天津市实验中学2019届高三第六次阶段考数学(理)试题【全国百强校】天津市实验中学2019届高三第六次阶段考数学(文)试题(已下线)专题16 解三角形(解答题)—2020年高考数学母题题源解密(天津专版)海南省海口市琼山中学2020届高三年级上学期第二次月考数学试题
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6 . 函数f(x)=
sin(x+
)+cos(x-
)的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb84f6fbac102ccf326b2223d69cb7cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0bf9e42f4ba6772a859da00df960714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65af1d6b6b831ebbdc36dda5f304a3a1.png)
A.![]() | B.![]() | C.1 | D.![]() |
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2019-01-17更新
|
1895次组卷
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3卷引用:江西省南昌市八一中学2019-2020学年高一5月开学考试数学试题
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7 . 已知
,
.
(1)求
的值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb81205790a09e41ab95c6fb54a819ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f102439ebd1efd422f04209ecec2bf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ff6bf256973c7153aa8ea58d3db69e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea8cc70fb22aa6def23b8cb42a682537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9082ee8dab6c1e4e325c9db6b9f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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2018-07-05更新
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8卷引用:2020届江苏省苏州中学高三上学期期初数学试题
2020届江苏省苏州中学高三上学期期初数学试题江西省南昌市南昌县莲塘第二中学2019-2020学年高一上学期期末考试数学试题江西省南昌县莲塘第一中学2021届高三11月质量检测数学(文)试题江西省南昌市新建一中2020-2021学年高一下学期开学考试数学试题【全国市级联考】江苏省苏州市2017-2018学年高一下学期期末考试数学试题(已下线)专题09 两角和与差的正弦、余弦、正切-2021年高考数学二轮优化提升专题训练(新高考地区专用)【学科网名师堂】第10章 三角恒等变换 (B卷提升卷)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材苏教版)(已下线)考点28 三角恒等变换(2)-备战2022年高考数学一轮复习考点帮(新高考地区专用)【学科网名师堂】
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解题方法
8 . 在
中,
分别是角
所对边的边长,若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be45b7e24ec50cea4053adce86f9cf24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca69890d870ac9a79fe891ff57396e37.png)
A.![]() | B.2 | C.![]() | D.![]() |
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2018-04-14更新
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702次组卷
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4卷引用:江西省南昌市第二中学2020-2021学年高二上学期开学考试数学试题
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解题方法
9 . 若
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560ae57dc4d3177d9d2506e3bd729fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ba9745c01bcc7c3b62a4ee6dd60a3a.png)
A.![]() | B.![]() |
C.0 | D.![]() |
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2017-02-08更新
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669次组卷
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4卷引用:江西省南昌市第二中学2020-2021学年高二上学期开学考试数学试题
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解题方法
10 . 已知
为
的三个角
所对的边,若
,
( )
![](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/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7917c50321b4c5817522af27c3d50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50f634e8a73690a2d25952a42b61ed8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
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444次组卷
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6卷引用:2016-2017学年江西新余一中高二上学期入学考数学试卷