解题方法
1 . 下列函数为奇函数的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 已知集合
,
,则A∩
=(![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e3ad912b3350df26b5a33a267cd7d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fde92cfd8776003e05ea7e0b2cb4a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce69ebf6bcabab73084179e7c7cf7313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff88a5c66764c6d2a5beb0c91bcfeb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e3ad912b3350df26b5a33a267cd7d6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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