Question

A X A has 9 elements, two of which are ( -1, 0 ) and ( 0, 1 ), Find the set A

a) { -1, 0 ]
b) { 0, 1 }
c) { -1, 0, 1 }
d) { -1, 1 }
please answer fast urgent.

Answer 1

Answer:

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)