解题方法
1 . 设
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5083da35f1c479de1ce005364043da3.png)
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b958dc0b71559463006d1d5894d12c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5083da35f1c479de1ce005364043da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e3fdecd7a072eac3619a2b5082e63a.png)
您最近一年使用:0次
解题方法
2 . 复平面
与
交点个数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87432634f161e669f23527a5fc813ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
您最近一年使用:0次