若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91abaa381d536f1722f107db20946c0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51474d91e540a475138571e8738de850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91abaa381d536f1722f107db20946c0.png)
更新时间:2022-03-20 21:24:50
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【知识点】 正、余弦齐次式的计算解读
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