If A = {x : x^{2} - 3x + 2 = 0} and R is a universal relation on A, then R is
{(1, 1), (2, 2)}
{(1, 1)}
{?}
{(1, 1), (1,2), (2,1), (2,2)}
If A × B = {(1,1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3)}, then A is equal to.
{1, 2}
{1, 2, 3}
{2, 3}
None of these
Domain of the relation {(-3,1) (-1,1) (1,0) (3,0)} is
{-3,-1,-1,3}
{-3,-1,1,3}
{1,1,0}
{1,0}
The relation R from A = {11, 12, 13} to B = {8, 10, 12} defined by y = x - 1 is:
{(11, 10), (13, 12)}
{(10, 11), (12, 13)}
{(10, 11), (12, 13), (13, 12)}
Domain of √(4x - x^{2}_{)} is
[0,4]
(0,4)
R -(0,4)
R -[0,4]
If A = {1, 2, 3, 4} and B = {2, 3, 5}, then identify the correct relation, among the following from A to B given by xRy, if and only if x < y:
R = {(1,2), (1, 3), (2,2), (2, 3)}
R = {(3,2), (3,3), (3,4), (3,5)}
R = {(1,2), (1,3), (2,3), (2,5)}
R = {(1,3), (1,5), (3,2), (4,2)}
If A = {5, 6, 7} and B = {1, 2, 3, 4}, then number of elements in set A × B × B is equal to.
36
48
16
Let A = {a,b,c,d}, B = {b,c,d,e}. Then n[(A × B) ∩ B × A)] is equal to
3
6
9
If f(x) = 2x^{2} - 3x. Then the value of f(1) =
-1
1
can't be determined
Let R = {(1,3), (4, 2), (2, 4) (2, 3) (3, 1)} be a relation on the set A = {1, 2, 3, 4}. The relation R is:
Reflexive
Transitive
Not symmetric
A function