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
If (a,b) = (2,3), then (a2+1, b2+2) is equal to
(3,5)
(5,11)
(1,2)
None of these
Let f: A→ B. If two or more than two elements have the same image in B, then f is said to be
Many one function
One- one function
Unto function
Into function
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)}
If AxB = {(1,1), (1,2), (1,3),(2,1),(2,2),(2,3)}, then A is equal to
{1,2}
{1,2,3}
{2,3}
Let A= {1,2,3} and R= {(1,2), (2,2), (3,1), (3,2)}. Then the domain of R-1 is
{2,1}
{1,3}
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 = {5,6,7} and B= {1,2,3,4} , then number of elements in set AxBxB is equal to
36
48
16
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 R is a relation from {11,12,13} to { 8,10,12} and is defined by y= x-3, then find the value of R-1.
{ (11,8), (10,13)}
{ (8,11), (10,13)}
{ (11,10), (8,13)}
{ (8,10), (11,13)}
