解题方法
1 . 已知
,
,
是实数,
是虚数单位.
(1)若
,
,求
的模;
(2)若
,
且
,试求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b55f716e1e659f20e8cd3810cd714f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daea5d12e3b54e30c9b78db21fdf8f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3b8ad884c46a37e403a63274ff8196.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4e861b8edee5e91bb9dd8ed0a21d7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1502b6f3e49a1d0f7a5289687372ab64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de59a6da1ee210ccf04651ae53275dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2021-08-01更新
|
93次组卷
|
2卷引用:湖南省湘西自治州2020-2021学年高一下学期期末数学试题
解题方法
2 . 已知
(
是虚数单位),在复平面上,
对应的点在第______象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7393d9ed98cdf2978b9d5eaec0bd32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18127b660082502c1db150cc309cd325.png)
您最近一年使用:0次
2021-08-01更新
|
86次组卷
|
2卷引用:湖南省湘西自治州2020-2021学年高一下学期期末数学试题