Two finite sets A and B having m and n elements. The total number of relation A to B is 64, then possible values of m and n are.
2 and 4
2 and 3
2 and 1
64 and 1
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}
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
What is the value of x for which the function f(x) = 5/3x-2 becomes meaningless ?
5
3
3/2
2/3
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)}
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}
None of these
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}
Let f: R→R; f(x) = (x2-3x+2). Then f(f(y))=
x4+6x3+10x2-3x
x4-6x3-10x2-3x
x4-6x3+10x2-3x
x4+6x3-10x2+3x
If A, B and C are non empty sets then Ax (B ∪ C)=
(AxB) ∩ (AxC)
(AxC) ∩ (AxA)
(AxB) ∪ (BxC)
(AxB) ∪ (AxC)
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)}
