Mając dane zbiory: A=(-∞;4)∪ B=<-5;3) wyznacz: A∪B,A∩B,A\B,B\A oraz A' i B'
A = ( - oo; 4 )
B = < - 5 ; 3 )
zatem
A u B = A
A n B = B
A \ B = ( - oo; 5) u < 3; 4 )
B \ A = zbiór pusty
A' = R \ A = < 4; + oo )
B' = R \ B = ( - oo; 5) u < 3; + oo )
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A = ( - oo; 4 )
B = < - 5 ; 3 )
zatem
A u B = A
A n B = B
A \ B = ( - oo; 5) u < 3; 4 )
B \ A = zbiór pusty
A' = R \ A = < 4; + oo )
B' = R \ B = ( - oo; 5) u < 3; + oo )
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