若
则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f125fd53e1adb7b35d7d69692bb34953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a062eccbf3f024fff5b7b144048f80.png)
A.−2 | B.−1 | C.1 | D.2 |
更新时间:2022-01-26 23:00:12
|
【知识点】 正、余弦齐次式的计算解读
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A.![]() | B.![]() | C.-2 | D.2 |
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