Domain of √(4x - x2) is
[0,4]
(0,4)
R -(0,4)
R -[0,4]
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
If f(x) = 2x2 - 3x. Then the value of f(1) =
-1
1
can't be determined
None of these
Let A = {a,b,c,d}, B = {b,c,d,e}. Then n[(A × B) ∩ B × A)] is equal to
3
6
9
Let function f:R → R be defined by f(x) = 2x + sin x for x R. Then, f is.
one-to-one and onto
one-to-one but not onto
onto but not one-to-one
neither one-to-one nor onto
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 the set A has 3 elements and the set B = {a,b,c} Then the number of elements in A x B is
27
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}
If A × B = {(1,1), (1,2), (1, 3), (2, 1), (2,2), (2, 3)}, then B is equal to.
If A = {x : x2 - 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)}
