Question

If A = {positive integers} and B = {…,-4, -3, -2, -1} what is A ∩ B?
Answer
{ }
{…, -3, -2, -1, 1, 2, 3, …}
{1, 2, 3, 4, …}
{…-3, -2, -1}

Answer 1

Are there any numbers that are in both A and B?

Answer 2

{}

Answer 3

Yes an army of barneys lol! that was random

Answer 4

because there are no common numbers in both sets