Question

if A*B={(a, 1),(a,2),(a,3),(b,1),(b,2),(b,3)} find the sets A and B hence find B*A​

Answer 1

A={a, b}

B={1,2,3}

B*A={(1,a) (2,a) (3,a) (1,b)(2,b) (3,b) }

Answer 2

thank you for free points