在
中,给出下列关系式:①
;②
;③
;其中正确的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651e2a239910c8920e11c4e350925414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4d5ff8f71bf8b3e9e954e2ec36c134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f80d7eb4445600f0e585ca75851ca6.png)
A.① | B.②③ | C.①③ | D.①②③ |
更新时间:2021-08-13 08:48:00
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单选题
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【推荐1】若角
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A.![]() | B.![]() | C.![]() | D.![]() |
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