已知全集U=R,A={x丨-4≤x≤2},B={x丨-1
问题描述:
已知全集U=R,A={x丨-4≤x≤2},B={x丨-1
求(AUB)并(CuP)
答
A∩B={X|-1<X≤2}
(CuB)={X|X≤-1或X>3}
(CuB)∪P={X|X≤0或X≥5/2}