If A={a, b } and
B={1,2}then number of element in A×B are
a) 2
b) 4
c) 6
d) 8
Solution:Number of element in A×B =number of element in A
× number of element in B
=2×2=4
If A={a, b, c ,d }
number of possible subset of A is………..
a) 12
b) 16
c) 6
d) 8
In Relation R from A
to B is the set of all first element of the ordered pair which belong to R is
called…………
a) Domain of a relation
b) range of a relation
c) ordered of a relation
d) none of these
In Relation R from A
to B is the set of all second element of the ordered pair which belong to R is
called………….
a) Domain of a relation
b) range of a relation
c) ordered of a relation
d) none of these
Domain of a relation is denoted as…………
a) Dom ( R)
b) Range( R)
c) both a and b
d) none of these
