23-24高一下·上海·期末
解题方法
1 . 对于任意的复数
,定义运算
.
(1)集合
,
,
,
均为整数
,试用列举法写出集合
;
(2)若
,
为纯虚数,求
的最小值;
(3)直线
上是否存在整点
(坐标
,
均为整数的点),使复数
经运算
后,
对应的点也在直线
上?若存在,求出所有的点;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db31fcead8e3aff98a0d7712bff575f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159a0230bb4b7c9d266b73b0afaf481e.png)
(1)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6ba9a3a3b8a765dd2904fcdd22f2a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5319687dd89eaf09f8f875803724988f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d6ca793cbabf3e22b7410f957a1fe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb10bf3211e7b87b12823aa71f06ffba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a8594bf5bf74a99efa8c17db231034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86202ddf220de1d8f5dc2c72cbe5b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042c0c7e253a65f770583c5c6696770.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f716e26c3a061266336f9a5d2a3fcea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9e4a7572ce9d7f8041b6ec5a3c3ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86202ddf220de1d8f5dc2c72cbe5b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
2 . 已知复数的三角形式为
.
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb0e25bbccbee4a1b9db38b49e87978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb0e25bbccbee4a1b9db38b49e87978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30deb1f343048675b9b231620369668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795806b48c253f51784994dedf0d8502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8536fdc54e3e4fe48b4dd8d75a52ee89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad481cbfb67ac9cdbc0537f3de23b022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
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