Question

Fie multimile :A={1,2,3,5}; B={0,2,4,6}; C={1,3,7,9,8,6}.Calculati:a) AUB;b) AUC; c) BUC; d) AUBUC; e) A U întors B; f) A U ÎNTORS C; g) B U ÎNTORS C; h) A U ÎNTORS B U ÎNTORS C; i) A\B; j) B\C; k) C\A; l)(A\B)\C.

Answer 1

AuB = ( 0,1, 2, 3, 4, 5, 6 )
AuC = ( 1, 2, 3, 5, 7, 9, 8, 6)
BuC = ( 0, 1, 2, 3, 4, 6, 9, 8 )
AuBuC = ( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 )
AnB = ( 2 )
AnC = ( 1, 3 )
BnC = ( 6 )
AnBnC = ( nimic )
A\B = ( 1, 3, 5 )
B\C = ( 0, 2, 4 )
C\A = ( 7, 9, 8, 6 )
(A\B)\C = ( 5 )