Question

Given A = {3, 6, 8} and B = {4, 8}, find B × A.

{(3, 4), (6, 4), (8, 4)}
{(4, 3), (4, 6), (4, 8), (6, 4), (8, 4)}
{(3, 4), (3, 8), (6, 4), (6, 8), (8, 4), (8, 8)}
{(4, 3), (4, 6), (4, 8), (8, 3), (8, 6), (8, 8)}

Answer 1

@toga

Answer 2

The correct answer is b. {(4, 3), (4, 6), (4, 8), (6, 4), (8, 4)}.

To find B × A, we need to take each element in B and combine it with each element in A.

So, starting with 4, we combine it with 3, 6, and 8 to get (4, 3), (4, 6), and (4, 8).

Then, moving on to 8, we combine it with 3, 6, and 8 to get (8, 3), (8, 6), and (8, 8).

So the final set is {(4, 3), (4, 6), (4, 8), (8, 3), (8, 6), (8, 8)}.