名校
1 . 已知
且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31e2cd9fec930f5ccfbb1d7c50801da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 已知
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8a14867e4d67be2e4eaeb77cc6c26a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a21f90aeb69c6d5ba648ae57abd797d.png)
您最近一年使用:0次
名校
3 .
中,角
是其中一个内角,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf8c231f6894bef1f6547e467a14d99.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/28b0a5504906a80fa67723b2c0b33faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf8c231f6894bef1f6547e467a14d99.png)
您最近一年使用:0次
解题方法
4 . 已知:
且
(1)求
和
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c498b0c4f936710b179e445e88cdea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28b2bbb75d9d7957e1d4e217d158047.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d469f6556c10a448446ef4ef59065bc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac44e12637ca9becbbcba1d4d6e1ceb.png)
您最近一年使用:0次
2017-12-22更新
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1286次组卷
|
2卷引用:广东省佛山市第一中学2017-2018学年高一上学期第二次段考(12月)数学试题