Question

choose the correct please solve it in paper​

Answer 1

A = { (1,-3) , (-1,3) , (4,2) , (-4,2) , (5,1), (-5,1) ,

(-5,-1) , (-4,-2) , (-1,-3) , (5,-1) , (4, -2) }

B = { (1,-3), (4,2), (5,1),(-1,-3), (5,-1),(4,-2)}

Therefore, n(A Π B )=6

Answer 2

option b is correct 6......