If R = {x, y) : x, y Î Z, x2 + y2 £ 4} is a relation in z, then domain of R is

Related MCQs

• Let T (x, y) mean that student x likes dish y, where the domain for x consists of all students at your school and the domain for y consists of all dishes. Express ¬T (Amit, South Indian) by a simple English sentence.
• If a relation is reflexive, then all the diagonal entries in the relation matrix must be________.
• If a relation is reflexive then in the graph of a relation there must be a loop at _____.
• Let a relation R in the set R of real numbers be defined as (a, b) Î R if and only if 1 + ab > 0 for all a, bÎR. The relation R is
• R is a relation from {11, 12, 13} to {8, 10, 12} defined by y = x – 3. The relation R – 1 is
• Let R = { ( 3, 3 ) ( 6, 6 ) ( ( 9, 9 ) ( 12, 12 ), ( 6, 12 ) ( 3, 9 ) ( 3, 12 ), ( 3, 6 ) } be a relation on the set A = { 3, 6, 9, 12 }. The relation is
• Let R = {(3, 3), (6, 6), (9, 9), (12,12), (3,6), (6,3), (3, 9), (9, 3), (9, 12),(12,9)} be a relation on the set A = {3, 6, 9, 12}. The relation is _________
• Let R={(1, 3), (4, 2), (2, 2), (3, 3), (1, 1),(4,4)} be a relation on the set A={1, 2, 3, 4}. The relation R is ____.
• If A = { (1, 2, 3}, then the relation R = {(2, 3)} in A is
• Let X be a family of sets and R be a relation in X, defined by ‘A is disjoint from B’. Then, R is