设集合A={y|y=x²+2x-3,x∈[-2,2]},B={x|(x-m-1)(x-2m+1)
2个回答
A={y|y=(x+1)²-4}=[-1,5]
(1)m+1-(2m-1)=2-m,m2m-1; m=2,m+1=2m-1; m>2,m+1
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