解题方法
1 . 已知
是第二象限角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c1fc049a87888752174ddea4187c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 若角
是锐角,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c1fc049a87888752174ddea4187c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
A.![]() | B.-![]() | C.-![]() | D.![]() |
您最近一年使用:0次
2022-07-16更新
|
1519次组卷
|
3卷引用:湖南省2024年普通高中学业水平合格性考试数学考前押题卷(五)
3 . 已知
为锐角,且
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
您最近一年使用:0次
解题方法
4 . 若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e1f49a777cd4db86ebe8da62a7bc5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c88ed33f966173f11b2292481d9a046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b80751c98f9991b9cfc03923a98834.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次