解题方法
1 . 设复数
.
(1)若
是实数,求
;
(2)若
是实数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c878acebd9267b451d0e01a6a915d356.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b88f343ca5a4c29057465541b9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8b3f66119c2ce542984d12eb2b6b77.png)
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2 . 计算:
的结果是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c829ec8eab1ee156a4f3fe2f703d805f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9eff268bdc2a362646cad90b73c6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca6c17df8a51bb6492426fddcfb622.png)
A.![]() | B.![]() | C.5 | D.![]() |
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解题方法
4 . 复数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62967cd64ab74a5df90a98127ce08aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35845a775881218a4d0a4944dee85ed9.png)
A.1 | B.2 | C.![]() | D.![]() |
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5 . 在复平面内,复数
对应的点的坐标为
,且
为纯虚数(
是
的共轭复数).
(1)求m的值;
(2)复数
在复平面对应的点在第一象限,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31286bfff67998b19519fbfbe9d4519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2251a074c917edc797d7a2f9ae658d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(1)求m的值;
(2)复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8ca5beec6862769b3027d7de4578de.png)
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解题方法
6 . 已知复数
,
是实数.
(1)求复数
;
(2)设
,求
;
(3)若复数
在复平面内所表示的点在第二象限,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825f317b79811e9cbab73a57268d562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127e7f216f81b78084fcb5af2da60389.png)
(1)求复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5838ef9b71a7e46e52b64d6792c72706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06421ca826efebed1ee69b381b079bd.png)
(3)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c9069b3d40dbe19d780fb056155e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 已知复数
满足
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0656aacae35cb51e30f72e86a4f24150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042c0c7e253a65f770583c5c6696770.png)
A.![]() | B.![]() | C.1 | D.![]() |
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解题方法
8 . 设z为复数(i为虚数单位),下列命题正确的有( )
A.若![]() ![]() |
B.若z的共轭复数![]() ![]() |
C.![]() |
D.在复平面内,集合![]() ![]() |
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9 . 已知复数
,以下四个说法中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d860cb86e1467ac24010aecfc7a425.png)
A.复数![]() |
B.若![]() ![]() |
C.![]() |
D.![]() |
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10 . 设复数
满足
,则复数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a8d22c8d82bc9dceeab78b9438a5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次