Question

If A = {onion, pickles} and B = {onions, pickles, mustard, mayonnaise, lettuce}, what is A B?

{onions, pickles}

{onions, pickles, mustard, mayonnaise, lettuce}

{mustard, mayonnaise, lettuce}

{ }

Answer 1

A B?

if you mean A U B = {onions, pickles, mustard, mayonnaise, lettuce}
if you mean A intersection with B = {onions, pickles}
if you mean A - B = {}
if you mean B - A = {mustard, mayonnaise, lettuce}