已知函数f(x)=
的定义域为集合A,B={x|x<a}.
(1)若A⊆B,求实数a的取值范围;
(2)若全集U={x|x≤4},a=﹣1,求∁UA及A∩(∁UB).
![](https://img.xkw.com/dksih/QBM/2017/2/14/1625075243188224/1625075243581440/STEM/5bc8628ec85e424293a3d32acdcdd3ab.png)
(1)若A⊆B,求实数a的取值范围;
(2)若全集U={x|x≤4},a=﹣1,求∁UA及A∩(∁UB).
更新时间:2017-02-16 09:26:57
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