名校
1 . 已知关于
的实系数二次方程
的一根为
(其中
是虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5a94417d0d62715ea4067280d733df.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b800b7d6a688abf8a3018c133cec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19ed90fa07e523db60031ab8d53e171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5a94417d0d62715ea4067280d733df.png)
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2 . 设复数
满足
(
为虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add02a80dba39a7cad7205520e0f5ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
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3 . 已知复数
满足
,则
对应的点位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b12d58ba9833e1c5cd17915c4b1b4bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.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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解题方法
4 . 若复数
为纯虚数,则复数
的共轭复数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617129dde348d61580a49999a137898e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知复数
,
,复数
在复平面上的点在第二象限,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/919bfc8c0532807a4f42a24e830e5f11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07afea2d6683ef307d221d93ca7dcdcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df99155f67cec511016a05127f0a2bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.1 | B.![]() | C.![]() ![]() | D.1或![]() |
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解题方法
6 . 设复数
(其中
),
.
(1)若
,求
的值;
(2)若
是实数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88701826f48dd1ea7a4869cf77d5813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab15cfa691e78c4caf7d23046df9eca.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da4e6752d8c8a0705194f2b2f16ab5d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b88f343ca5a4c29057465541b9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7 . 已知复数
满足
,则
的虚部为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e006cc0c35ea95bab504bc62e122df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
A.i | B.![]() | C.1 | D.![]() |
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7日内更新
|
75次组卷
|
2卷引用:西安市交大附中2023—2024学年高一下学期第二次月考数学试题
名校
8 . 若复数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63e56ebb36c73b41650508c0b24c455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
A.![]() | B.10 | C.![]() | D.20 |
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7日内更新
|
231次组卷
|
3卷引用:甘肃省金昌市永昌县第一高级中学2023-2024学年高一下学期期中考试数学试卷
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9 . 记
是虚数单位,复数z满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9af237320ac7563306c9438f787c083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a176cfc17acf73eba234dfccadd8f1e.png)
A.2 | B.![]() | C.![]() | D.1 |
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7日内更新
|
258次组卷
|
2卷引用:重庆市四川外国语大学附属外国语学校(重庆外国语学校)2023-2024学年高一下学期5月月考数学试题
名校
10 .
为虚数单位,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ee2fecef4d938cdd0b3ddad72cd837.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ee2fecef4d938cdd0b3ddad72cd837.png)
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