1 . 已知关于
的方程
,
.
(1)当
时,在复数范围内求方程的解;
(2)已知复数
,若方程
有虚根,求
的模的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5aedc701158c3368168565085cb6569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f7f23e7f20dd8bc65a4967cd306782.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)已知复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc05f2cb5cf6f0356039cce674b01d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5aedc701158c3368168565085cb6569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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2023-04-12更新
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2卷引用:湖南省108所学校2022-2023学年高一下学期期中联考数学试题