Question

A×A has 9 elements among them are (-2,0) and (0,3) a.then find A b.Write A×A​

Answer 1

n(A×A)=9

Set A={−1,0,1} Since (−1,0) and (0,1) are elements in A×A

Remaining elements

={(−1,−1),(−1,1),(0,−1),(0,0),(1,−1),(1,0),(1,1)}