Question

There are 9 elements in the cartesian product AXA
in which two elements are (-1,0) and (0, 1). Find
the set A and A X 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)}