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1 . (1)设
为虚数单位,求
的实部;
(2)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18abfd9441f24a5fbd1b7e7d5cd1aab.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e71d0503b3feda569aeeb1036876d9c.png)
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2021-01-26更新
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2卷引用:北京一零一中学2020-2021学年高二上学期期末考试数学试题