解题方法
1 . 已知
、
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1602f627af38271a0de9dd53d42fa885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db4ff6d67251869196730c367d448cd.png)
A.![]() | B. | C.![]() | D.![]() ![]() |
您最近一年使用:0次
2 . 下列各式中,
与
表示同一集合的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次