Wyznacz zbiory A U B (suma), A n B (część wspólna)A-B, B-A jeśli:
a) A = <-2,1), B= (-4, -1> U <0,3)
b) A= <-3,0> U (5,7) B= <-4, -2> U (3,6)
c) A= (-∞, -3> U <5, +∞), B= (-4,6)
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a) AuB=(-4,3)
AnB=<-2,-1> u <0,1>
A\B=(-1,0)
B\A=<-4,-2) u <1,3)
b) AuB=<-4,0> u (3,7)
AnB=<-3,-2> u (5,6)
A\B= (-2,0> u <6,7)
B\A=<-4,-3) u (3,5>
c)AuB=(-∞, +∞)
AnB=(-4,-3> u <5,6)
A\B=(-∞, -4> u <6,+∞)
B\a= (-3,5)