名校
1 . 给出下列命题
(1)实数的共轭复数一定是实数;
(2)满足
的复数
的轨迹是椭圆;
(3)若
,
,则
;
(4)若“
,
,
是不全相等的实数”,则
;
(5)若“
,
,
是不全相等的实数”,则
,
,
不能同时成立
其中正确命题的序号是( )
(1)实数的共轭复数一定是实数;
(2)满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2e77c1cb175223f7b8705690382a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d4999a846dafaf3fe0ef8708633b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73be79c02db553929619d957187e2077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7490d503e9c60bdfc11e538c32b3ba.png)
(4)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c963fff1522f6345d8bbb882c6cd5768.png)
(5)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5e009486af263893ca8290be72f258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27939e420063f0960f9c15f169f4a3e4.png)
其中正确命题的序号是( )
A.(1)(2)(3) | B.(1)(3)(4) | C.(2)(3)(5) | D.(3)(4)(5) |
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2021-01-22更新
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6卷引用:第12章 复数(基础过关)-2020-2021学年高一数学单元测试定心卷(苏教版2019必修第二册)
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