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1 . 化简求值:
(1)已知
,求
的值;
(2)
.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01119146fbbfdde872c52f59fa3783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1050b38066b3a340533f84d0d96397b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0851b6f69e84a5adc453a109d553407.png)
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2022-02-04更新
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4卷引用:甘肃省兰州市榆中县恩玲中学2023-2024学年高一上学期期末考试数学试题