已知函数f(x)=
+ln(5-x)的定义域为A,集合B={x|2x-a≥4}.
(Ⅰ)当a=1时,求集合A∩B;
(Ⅱ)若A∪B=B,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8bf60b2327a3d15eab4545ad74b310.png)
(Ⅰ)当a=1时,求集合A∩B;
(Ⅱ)若A∪B=B,求实数a的取值范围.
更新时间:2019-01-18 09:34:18
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