Question

A={x apartine N | x < 5} si B={x aparține N | 3 mai mic sau egal x mai mic sau egal 6}
Calculați : A reunit B,A intersectat B,A-B,B-A

Answer 1

A=(0,1,2,3,4)
b = (3,4,5,6)
AUB = (0,1,2,3,4,5,6)
A intersectat B = (3,4)
A-B = (0,1,2)
B-A =(5,6)

Answer 2

A={4,3,2,1,0}
B={3,4,5,6}
A reunit cu B= {2,1,0}
A intersectat cu B={3,4}
A-B={ 2,1,0}
B-A={5,6}