1 . 已知
是第二象限角,
.
(1)化简
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c096bb201069efae140db6ae5c4b4d18.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ca5c118cc71f5b68a6e4f183154324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
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2 . 已知倾斜角为
的直线
与直线
垂直,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b818e1793be8d9213e903e5224987a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a080cab44a7d3605430d67b207f9be.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-04-10更新
|
673次组卷
|
8卷引用:新疆巴音郭楞蒙古自治州第二中学2021届高三上学期第四次月考数学(理)试题
名校
解题方法
3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2814f3570a25f30f8acf212d8bd1b382.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7b3c92e7343a586084f01ea5e45889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2814f3570a25f30f8acf212d8bd1b382.png)
您最近一年使用:0次
2016-12-02更新
|
992次组卷
|
5卷引用:2016-2017学年新疆库尔勒四中高二上学期分班考试数学(文)试卷