全集I=R,集合A={x x=-t2+2t,t∈R}B={y y=-x2+2x+1,x∈R}则GIA∩B=

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全集I=R,集合A={x x=-t2+2t,t∈R}B={y y=-x2+2x+1,x∈R}则GIA∩B=
全集I=R,集合A={x x=-t2+2t,t∈R}B={y y=-x2+2x+1,x∈R}则GIA∩B=

全集I=R,集合A={x x=-t2+2t,t∈R}B={y y=-x2+2x+1,x∈R}则GIA∩B=
A={x|x=-(t-1)^2+1<=1}={x|x<=1}
B={y|y=-(x-1)^2+2<=2}={y|y<=2}
CIA={x|x>1}
CIA∩B={x|1