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设全集U=R,A={x|-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

设全集U=R,A={x|-1
设全集U=R,A={x|-1

设全集U=R,A={x|-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)

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