若
,
,并且
,
均为锐角,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78ed90572f0533b84c50312bc78e405d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1035e3272dd97e135723b711f55bee.png)
![](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/90df641ab645927ee577e79faf18dcdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
A.![]() | B.![]() | C.![]() | D.![]() |
23-24高二上·江苏淮安·开学考试 查看更多[2]
更新时间:2023-09-27 23:57:19
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单选题
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较易
(0.85)
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【推荐1】已知
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5839fbbaddc6f84df0e8661b11869dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
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【推荐2】设
为第四象限的角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9088e31e00eaa4e95c1e6717b0c82cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
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您最近一年使用:0次
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【推荐2】在平面直角坐标系中,角
与
的顶点均为坐标原点O,始边均为x轴的非负半轴.若角
的终边与单位圆交于点
,将OP绕原点O按逆时针方向旋转
后与角
的终边重合,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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e7c6b1e8d06e439c1ede19f99286c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
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