1 . 设复数
,则复数
的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e754e41d33d46b704e9d5ee1082fdd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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2 . 对任意复数
,
,定义
,其中
是
的共轭复数,对任意复数
,
,
,下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b55b59c92a868cc6f448e5d92d257401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34ca4e9a53e49f06b4583f561098cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e151b4798060c5bdedca25822839b75b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ade42bea8d65e2a295631861f9a4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34ca4e9a53e49f06b4583f561098cd0.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)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 关于
的方程
.
(1)若
是方程
的一个虚根,求
的值;
(2)若
,
是方程
的两个虚根,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06720e2375c2d0473d5e4fa93ef5247.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf9aad7eebf23ced14665d3a11e4e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f4e863987418d465678dc1c90fa7da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216877ea6e839a6fa78be498529b66eb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af38a4a530eeb0e653729fb4ad300b83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4932d1dc05c81683825bffac5a6ba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
您最近一年使用:0次
解题方法
4 . 已知复数z满足
,且
,则复数z表示的轨迹长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc51c6d23ba2be5c9e0b35e5e4fdf065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b4941fb4e33e741d71ef3da03a3932.png)
您最近一年使用:0次
5 . 已知复数z满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5240e9c871d8a6ddc6297eab74c548aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 若复数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb1edb878ce2987e6a6027e5233bb9e.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbcb5bc5601877cc286185236378fc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb1edb878ce2987e6a6027e5233bb9e.png)
您最近一年使用:0次
7 . 已知复数
的虚部不为零,同时满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2010a2a275043202d038e64f18846df6.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
8 . 已知复数
,
,则
在复平面内对应的点所在的象限为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc4197a11da7bf73ce579dc40ff0db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31060d1fc715ddd24db0bd516cea2044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4e2b866b0043a32fc78326553841d3.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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9 . 已知i为虚数单位,则以下四个说法中正确的是( )
A.![]() |
B.复数![]() ![]() |
C.若复数![]() ![]() |
D.![]() |
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10 . 下列命题为真命题的是( )
A.复数![]() ![]() |
B.若![]() ![]() |
C.在复数集![]() ![]() ![]() |
D.已知![]() ![]() ![]() |
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