1 . 已知
,
都是锐角,且满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d780ecf4fd25cba9add738a221a737b6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2021-04-29更新
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2卷引用:安徽省江淮十校2021届高三下学期4月第三次质量检测文科数学试题
20-21高一·上海·假期作业
2 . 已知
,且
为第三象限角,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c379958a73f9d62c97bb3e1ce694b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
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名校
3 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1849bf4b17365b9409ef9fd266ff0cc3.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1849bf4b17365b9409ef9fd266ff0cc3.png)
您最近一年使用:0次
2021-01-31更新
|
391次组卷
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3卷引用:安徽省六安市第一中学2020-2021学年高一上学期期末数学试题