已知复数
,
(
,
是虚数单位).
(1)若
在复平面上对应点落在第一象限,求实数
的取值范围;
(2)若
是实系数一元二次方程
的根,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf6b65616eefa1acb7c16b6c3f0ca999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0055868371dd09b74ca4cd76750f9172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4e2b866b0043a32fc78326553841d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1942cc1a75a48efef0c5625c77a879e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2020-07-23 14:34:18
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐2】已知复数
,且
为纯虚数(
是z的共轭复数).
(1)设复数
,求
;
(2)若实数
、
满足
,求实数
、
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace4b02097f924b91fe56f4baec08ad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8033b9053f89ea266a5536b6fbb8781e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
(1)设复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea56a679c5d46fd202eb77db0aad9ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8b3f66119c2ce542984d12eb2b6b77.png)
(2)若实数
![](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/342d8c49234867eaf526f647fcff0a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】已知复数
(
,
是虚数单位).
(Ⅰ)若
是纯虚数,求实数
的值;
(Ⅱ)设
是
的共轭复数,复数
在复平面上对应的点位于第二象限,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e23740a4cdd95c68369e67166ee0bdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0c2f978b8ec6a7d1c8f17bfa81d1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b02d5fd7d450c4b4498df20119b21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】若复数
,
为虚数单位,
为实数.
(1)若
为纯虚数,求
的值;
(2)若
在复平面内对应的点位于第三象限,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176fb8d979d0c971cfd59df437181223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐3】已知复数
,其中
为虚数单位.
(1)若复数z是纯虚数,求实数m的值:
(2)若复数z在复平面内对应的点位于第三象限,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e551d9472d7014ccd4e15015acd029e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
(1)若复数z是纯虚数,求实数m的值:
(2)若复数z在复平面内对应的点位于第三象限,求实数m的取值范围.
您最近一年使用:0次