名校
解题方法
1 . 已知
,
是第四象限角,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-03-06更新
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342次组卷
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2卷引用:广东省东莞市高级中学2017-2018学年高一下学期第一次月考数学试题
2 . (1)已知角
终边上一点
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907f9a1fbead4e70b5a26e54c95da29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab00bbf46abc536ba0bdb19d0ccc667.png)
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135d867eac30e5a4cff409f70464a3fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907f9a1fbead4e70b5a26e54c95da29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab00bbf46abc536ba0bdb19d0ccc667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a39ee003ce154b19561409afdddb7c.png)
您最近一年使用:0次