1 . 已知
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51474d91e540a475138571e8738de850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52325d91bd5d77cee8684bf7e43638d9.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,并且
是第二象限角,求:
(1)
和
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1787e68a985628049e5dc0bcef0d3197.png)
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2023-01-06更新
|
329次组卷
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3卷引用:天津市第九中学2022-2023学年高一上学期期末数学试题
天津市第九中学2022-2023学年高一上学期期末数学试题河北省廊坊市霸州市第四中学2022-2023学年高一上学期期末数学试题(已下线)10.2 二倍角的三角函数(分层练习)-2022-2023学年高一数学同步精品课堂(苏教版2019必修第二册)
名校
3 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
______ ;(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c02b53459eb0dbf71879b063cd75fb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c02b53459eb0dbf71879b063cd75fb.png)
您最近一年使用:0次
名校
4 . 已知
,
.
(1)求
和
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb40cd5425e9d4fcea334668467726a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bfdb5f50c0514b2b7cb83b2c29407b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c714dda082c747f962b7a82b0bddde6.png)
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2022-12-11更新
|
1318次组卷
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4卷引用:天津市南开中学滨海生态城学校2022-2023学年高一上学期第二次作业反馈数学试题
5 . 已知
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e882bb534f44b5db7d7d07e617eebd.png)
A.![]() | B.7 | C.![]() | D.-7 |
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2022-11-10更新
|
466次组卷
|
2卷引用:天津市部分区2022-2023学年高三上学期期中数学试题
名校
解题方法
6 . 已知在
中,角A,B,C的对边分别为a,b,c,且
,
,
.
(1)求b的值;
(2)求
和
的值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff214d99784c6b23b7784bdaf3ed37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348551d9ea36d82fab80ae54df9d6c89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110d7c6c666a05e6ed45b45ef99edd6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15cc07eb487a2f384935c8668160e153.png)
(1)求b的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32f2d4d1d2c16c54b2caef17840bfcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aae1dc870a60a2070469d556deb472.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf550868eb6cca6ab2c91de8acabdf82.png)
您最近一年使用:0次
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解题方法
7 . 已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e778529bd8c023129939ecff74449ad1.png)
(1)求
的值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bc95814a88c8fed2f446ac56f361ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e778529bd8c023129939ecff74449ad1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0409bc4690a8b8f9d6d981de8c929849.png)
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2022-07-15更新
|
1485次组卷
|
3卷引用:天津市第四中学2022-2023学年高一上学期期末随堂数学试题
名校
8 . 已知角
是第四象限角,且
.
(1)求
和
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1064681477809b5c22163ba099e4caa.png)
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2022-07-09更新
|
400次组卷
|
2卷引用:天津市第二十五中学2022-2023学年高一上学期期末数学试题
9 . 已知
,
.
(1)求:
的值;
(2)求:
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
(1)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3b4b5a54e1437afb12373a4418beb0.png)
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
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2022-03-14更新
|
308次组卷
|
3卷引用:天津市红桥区2018-2019学年高二下学期期末数学试题
天津市红桥区2018-2019学年高二下学期期末数学试题(已下线)第02讲 二倍角的三角函数-【帮课堂】2021-2022学年高一数学同步精品讲义(苏教版2019必修第二册)河南省濮阳市博文学校2022-2023学年高二上学期第二次月考数学试题
名校
解题方法
10 . 已知
.
(1)
,求
和
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228cb036f045c2a57cc21e8ed79f19c7.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d450aea0fb89e956fc4caa3a9c59fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc87c9952f3355f5595b2b5aff93d589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
您最近一年使用:0次