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 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)}
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
Cartesian product of two sets A and B is Ax B =
{(a,b); a ∈ Aand b ∈ B}
{x; x∈A and B}
{(a,b); a∈B and b∈A}
If m elements are in a set A and n elements are in set B, then number of elements in set AxB is
m
n
mn
less than mn
If A, B and C are non empty sets then Ax (B ∪ C)=
(AxB) ∩ (AxC)
(AxC) ∩ (AxA)
(AxB) ∪ (BxC)
(AxB) ∪ (AxC)
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 = {5,6,7} and B= {1,2,3,4} , then number of elements in set AxBxB is equal to
36
48
16
If A = {2,3} and B = {1,2}, then AxB is equal to
{(2,1), (2,2), (3,1), (3,2)}
{(1,2), (1,3), (2,2), (2,3) }
{(2,2), (3,2)}
{(1,2), (2,3)}
If AxB= {(1,1), (1,2), (1,3), (2,1), (2,2), (2,3) } then B is equal to
{1,2}
{1,2,3}
{2,3}
