...x丨x≤4},集合A={x丨-2<x<3},B={x丨-3≤x≤2},求a的补集并b_百度知 ...
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A的补集={x|3=<x<=4, 或x<=-2}
B的补集={x|2<x<=4, 或x<-3}
(A的补集)并(B的补集）={x| 2<x<=4, 或x<=-2}
