Let x be any non empty set containing n elements. Then what is the number of relations on x?
2n
22n
n2
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}
If A = {5,6,7} and B= {1,2,3,4} , then number of elements in set AxBxB is equal to
36
48
16
None of these
Let A= {2,3,4,5} and Let R= {(2,3), (2,4), (2,5) } be a relation in A. Then R is
Reflexive
Symmetric
Transitive
Which one of the following is the domain of the relation R defined on the set N of national numbers as R= { (m,n) 2m+3n= 30; m,n N} ?
{2,4,6,8}
{3,7,11,15}
{3,6,9,12}
{3,6,9, 12,15}
If A= {1,2,3} and B= {3,4}, then (A B) X (A B) is
{3,3}
{(1,3), (2,3), (3,3), (1,4), (2,4), (3,4)}
{(1,3), (2,3), (3,3)}
{(1,3), (2,3), (3,3), (4,3)}
If A = {1,2,3,4} and B= {5,6,7}, then number of relations from A to B is equal to
24
23
27
212
The relation R defined on Set
{(-2,2), (-1,1), (0,0), (1,1), (2,2) }
{(-2,-2), (-2,2), (-1,1), (-1,-1), (0,0), (1,-2), (1,2), (2,-1), (2,-2)}
{(0,0), (1,2), (2,2)}
If A= {2,3} and B= {1,2} then BxA is equal to
{(2,1), (2,2), (3,1) (3,2)}
{(1,2), (1,3), (2,2), (2,3)}
{(2,1), (3,2)}
{(1,2), (2,3)}
