UPSC NDA II 2025 Mathematics Paper

Question : 43 of 120

Marks: +1, -0

Let A = {- 3, - 2, - 1, 0, 1, 2, 3} and B = {0, 1, 4, 9} How many elements does the subset of AB corresponding to the relation R = {(x, y) : |x| < y} have, where x ∈ A and y ∈ B?