Question

exercitui e in poza ajutatima

Answer 1

A = { -2;-3;0;1}
B={ -3;1}
C={ -5;0;5}

AUB = { -2;-3;0;1}
AUC= { -5;-2;-3;0;1;5}
BUC = { -5;-3;0;1;5}
A inters B ={-3;1}
B inters  C=multimea vida
C inters A ={0}
BxC ={ (-3,-5);(-3,0);(-3,5);(1,-5);(1,0);(1,5)}
CxA ={(-5,-2);(-5,-3);(-5,0);(-5,1);(0,-2);(0,-3);(0,0);(0,1);(5,-2);(5,-3);(5,0);       (5,1)}
A-B ={-2,0}
B-A= multimea vida
C-A = {-5,5}
(A-B)inters(B-C) ={-2,0} inters{-3,1} = multimea vida