设
为复数,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d860cb86e1467ac24010aecfc7a425.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() ![]() |
更新时间:2024-05-25 01:45:30
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适中
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【推荐2】已知i是虚数单位,下列说法中正确的有( )
A.若复数z满足|z|=0,则z=0 |
B.若复数z1,z2满足|z1+z2|=|z1﹣z2|,则z1•z2=0 |
C.若复数z=a+ai(a∈R),则z可能是纯虚数 |
D.若复数z满足z2=3+4i,则z对应的点在第一象限或第三象限 |
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适中
(0.65)
【推荐3】已知复数
,
(其中
是虚数单位),则下列命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9df77dc0d9ae32a07bd011af9928175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95316769aa8c8a67e04c232fdb904433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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适中
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名校
【推荐1】下列说法正确的是( )
A.![]() |
B.![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
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适中
(0.65)
【推荐2】已知i为虚数单位,复数
,则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7e10087a77c0eaf6a15ad831af466.png)
A.z在复平面内对应的点在第一象限 | B.z的虚部是![]() |
C.![]() | D.若复数![]() ![]() ![]() ![]() |
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【推荐1】定义复数的大小关系:已知复数
,
,
,
,
,
.若
或(
且
),称
.若
且
,称
.共余情形均为
.复数u,v,w分别满足:
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7769a9ed79bc3d423437e1ed98b033af.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad81dbee4a54bf41f7e94c427ff32c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ade3a1d01605706801e238726e55fb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7977d7239c13e044382d3bdc9ab015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b2fb1017d5dfe3a300de3e14a71b6f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a192a37227aec9ca48b5d879592713c2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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适中
(0.65)
【推荐2】设
,
是复数,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
A.若![]() ![]() | B.若![]() ![]() |
C.![]() | D.若![]() ![]() |
您最近一年使用:0次
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适中
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解题方法
【推荐1】设
,
,
是复数,则下列说法中正确的是( )
![](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/4cc94e186544711755957565772185df.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
多选题
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适中
(0.65)
【推荐2】设
,
为复数,且
,下列命题正确的是( )
![](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/55867478e05d3de0b51a99d685127beb.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次