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AuB=<-1,7)
A-B=(5,7)
B-A=(<-1,3>
A n B= (3,5>
A\B= (5,7)
B\A= <-1,3)
B=<-1;5>
A U B = <-1;7)
A П B = (3;5>
A \ B = (5; 7)
B\A = <-1;3>