Hi,
I have two sets:-
A = {3, 4, 5, 6, 9} and B = {3, 5, 7, 8}
I have figured out that A n B = 5 as '5' appears in both sets.
What I am now trying to do is work out:-
A u B with a bar over the A
but don't know what I am looking for.
If anyone can offer me advice on this it will be greatly appreciated.
Thanks!