Question

se dau multimile A={x|x apartine N,x < egal 3} si B ={x|x aprtine N,x+2=5}.determinati reuniunea,intersectia si diferenta multimilor

Answer 1

A={0,1,2,3}
B={3}
A U B={0,1,2,3}
A Π B = {3}
A\B={0,1,2}
B\A=Φ

Answer 2

A=0,1,2,3.
x+2=5
x=5-2
x=3
B=3
AUB
o,1,2,3.
A intersectat cu B
3
A-B
o,1,2