If R = {(x, y) : x, y ∈ I, x2 + y2 ≤ 4} is a relation in I, then domain of R is
A. {0, 1, 2}
B. {-2, -1, 0}
C. {-2, -1, 0, 2}
D. None of these
Answer:C
If R = {(x, y) : x, y ∈ I, x2 + y2 ≤ 4} is a relation in I, then domain of R is
A. {0, 1, 2} B. {-2, -1, 0} C. {-2, -1, 0, 2} D. None of these