设全集U=R,A={x|-1
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设全集U=R,A={x|-1
![设全集U=R,A={x|-1](/uploads/image/z/8088232-40-2.jpg?t=%E8%AE%BE%E5%85%A8%E9%9B%86U%3DR%2CA%3D%7Bx%7C-1)
(1)A=(-1,5],B=(-无穷,3)U[15,+无穷)
所以CuA=(-无穷,-1]U(5,+无穷)
(2)AUB=(-无穷,5]U[15,+无穷)
Cu(AUB)=(5,15)
所以CuA=(-无穷,-1]U(5,+无穷)
(2)AUB=(-无穷,5]U[15,+无穷)
Cu(AUB)=(5,15)