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A/B=(-1,0)υ<3,6>
B/A=(1,2)
b)AυB=(-4,3)
A/B=(-1,0)
B/A=(-4,-2)υ<1,3)
c)AυB=<-4,0>υ(3,7)
A/B=<-2,0>υ<6,7)
B/A=<-4,-3)υ(3,5>
d)AυB=<-2,1)υ(2,5>
A/B=<0,1)υ(2,3>
B/A=<-2,-1>υ(4,5>
e)AυB=(-∞,+∞)
A/B=(-∞,-4>υ<6,+∞)
B/A=(-3,5)