解题方法
1 . 已知复数
.
(1)若z在复平面中所对应的点在直线
上,求a的值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8001bdbcd7dbc83fbf4c3ab16b52c87.png)
(1)若z在复平面中所对应的点在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67318a67d0ae5a6ae0ec7dea216f525.png)
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2 . 设i是虚数单位,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a268ee12782999539ce7fcfcf0ad0bc0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de669b54453428fb75570d78ab023609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a268ee12782999539ce7fcfcf0ad0bc0.png)
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3 . 若
的实部与虚部相等,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bab1a841c6d66a25ec8220bc4ecbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.-2 | B.![]() | C.2 | D.3 |
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2018-04-29更新
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474次组卷
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5卷引用:四川省凉山木里中学2017-2018学年高二下学期期中考试数学(理)试题