Question

Sa se determine multimile AnB , AuB , si A-B , stiind ca : a) A=(1,2,3,4) si B= (2,4,6); b) A= (1,2,5,7,9) si B= (1,3,9,11); c) A=(2,4,6,8) si B= ( 10,12,14); d) A= (a,b,c,d,e) si B= (c,d,e)

Answer 1

a)  AnB={2,4}
AuB={1,2,3,4,6}
A-B={1,3}
b) AnB={1,9}
AuB={1,2,3,5,7,9,11}
A-B={2,5,7}
c)AnB={Ф}
AuB={2,4,6,8,10,12,14}
A-B={2,4,6,8}
d)AnB={c,d,e}
AuB={a,b,c,d,e}
A-B={a,b}