Answers

2015-06-15T20:47:09+08:00
Putting together the elements of set A and set B... example:
A={c,a,r} B={a,g,o}
AuB={c,a,r,g,o}
*if an element is found in set A and set B like the A element... there is no need of repeatition like this {c,a,r,a,g,o}
your answer will be wrong if you repeat an element in union^^
1 5 1