解题方法
1 . 计算下列题目:
(1)设
,求
.
(2)
,解方程
.
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b1e20a546c1900afbe3a645e9fd12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de971553ea8a66d7849b138a4a0625c5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54286fe72b8305272c36c0a3a8d2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0b274e490b3bad84ade99836fec09a.png)
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解题方法
2 . (1)若
时,求复数
(i为虚数单位)的模的取值范围;
(2)在复数范围内解关于z方程
(i为虚数单位).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c7d252055c96a668cd1fd50f278309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55c156b4dcbf67bd203d401186acedd.png)
(2)在复数范围内解关于z方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bb685c9f8d1db598abe2d19f165c93.png)
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