真题
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1 . 已知
均为锐角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32883521354a7e0879027c6da5b6e40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
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2019-10-09更新
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1055次组卷
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8卷引用:上海市浦东新区建平中学2024届高三上学期11月质量检测数学试题
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2 .
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c16931a9ee5206269034e8f61ead90c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-09-29更新
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5卷引用:2015-2016学年贵州花溪清华中学高一5.28周练数学卷