名校
解题方法
1 . 复数
的共轭复数
在复平面上对应的点在第________ 象限.(用汉字一、二、三、四填写)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8a37d2aee0afc897940251dd66d6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
您最近一年使用:0次
2020-12-27更新
|
274次组卷
|
3卷引用:重庆市育才中学2021届高三上学期12月月考数学试题
名校
2 . 下列关于复数的命题中:①任意两个确定的复数都不能比较大小;②若
,则
;③若
,则
;④
为纯虚数;⑤
;其中正确的命题是______ (仅填写命题序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d5ec74c81f7d02f273f7eecefaf9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281196519a8062cf55403a5c4dd13d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1cb45531be54c6d7f02de0c19e6f775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6a996e043f3d89b8f90f3e55145872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e3924c9ed32bd2db3556cf104c372f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537e04840c9887b47e4836c8a417a096.png)
您最近一年使用:0次
20-21高二·全国·假期作业
解题方法
3 . 设有下面四个命题:
①若复数
满足
,则
;
②若复数
满足
,则
是虚数;
③若复数
满足
,则
;
④若复数
、
满足
,则
;
其中是真命题的有___________ (填写所有真命题的编号).
①若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd79b4eb70d48435dec8824ad892494d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70cecfc37310dd869b0d51ff44d64e9.png)
②若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452262f21f9a05d43e371fa3f5b126a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
③若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc97f70a58d22400f7ab50fa1cdc79d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70cecfc37310dd869b0d51ff44d64e9.png)
④若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e045c712fb1efd2b4681134707cc86c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de59a6da1ee210ccf04651ae53275dd.png)
其中是真命题的有
您最近一年使用:0次
9-10高二下·广东湛江·期中
4 . 设i是虚数单位,C表示复数集.下列命题:
①若x∈C,y∈C,x2+y2=0,则x=y=0
②若x∈C,y∈C,x+yi=0,则x=y=0
③复数
对应的点在复平面的第四象限.
其中真命题是____________ (填写所有符合的序号)
①若x∈C,y∈C,x2+y2=0,则x=y=0
②若x∈C,y∈C,x+yi=0,则x=y=0
③复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ef95120c747cd7455542c388f33665.png)
其中真命题是
您最近一年使用:0次
名校
5 . 对任意复数
.
,定义
,其中
是
的共轭复数.对任意复数
.
.
,有如下四个命题:
①
;
②
;
③
; ④
.则真命题是________ (填写命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3871a062c5e0a4e009b01aa47afb48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a14b56f7f7bb23cd4bf9041e440a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a6745295f16b342aa42f374ef4801c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a32fb6da4da15b115bd5eb7a8aa4d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a14b56f7f7bb23cd4bf9041e440a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a67a742d2a43e907fb1c3a1bdf1d6a9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4802007201b1d464e62595a328e52e9f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67df30bc42ff7a5697a2b7812ab8fafa.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8788f274707335caf1f687c2d54d65a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7adda3b160661900e75f666061a84e67.png)
您最近一年使用:0次
2017-06-17更新
|
907次组卷
|
2卷引用:河南省南阳市第一中学校2016—2017学年下期高二第三次月考数学文试题