当实数
取什么值时,复数
是下列数?
(1)实数;
(2)纯虚数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e36dea0924894f8d6d69126b8d996d8.png)
(1)实数;
(2)纯虚数.
更新时间:2022-05-22 10:29:52
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【知识点】 已知复数的类型求参数解读
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】(1)已知复数
在复平面内对应的点分别为
,求
对应的复数
,并说明
在平面内所对应的点在第几象限?
(2)已知复数
分别对应向量
(
为原点),若向量
对应的复数为纯虚数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c59c8177542f19a07eaf51ad7c27e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)已知复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1367f11b4c21128f307c979463b2ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a32b5ad154b42a79a83c1cc20af0da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f904b079c6e1bb9d346f1572863a91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】实数
取什么值时,复数
是
(1)实数?
(2)虚数?
(3)纯虚数?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c70d8b91744b66406f093528311e2a.png)
(1)实数?
(2)虚数?
(3)纯虚数?
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐3】求当
为何实数时,复数
满足:
(1)
为实数;
(2)
为纯虚数;
(3)
位于第四象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd05eebe9af26a2121bacb9d244644fd.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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