Question

Se considera multimile A = { x | x ∈ ℕ si 3*x-5<=4} B={y | y ∈ ℕ,y<8 si 2*y >=2 la a doua} a scrieti elementele fiecarui multimi b A U B A ^ B VA ROG REPEDE DAU COROANA SI 5 STELE

Answer 1

3x-5<=4=>3x<=9=> x={3}
2y>=4=>y={2,3,4,5,6,7,8,9}

AUB={2,3,4,5,6,7,8,9}
A^B={3}