NDA || Mathematics || Calculus || Relation || Quiz

 is a relation over the set  of all real numbers and it is given by

Then,  is

Let X = {1,2,3,4,5} and Y = {1,3,5,7,9}. Which of the following is/are relation from X to Y ?

If  and , then which of the following is a relation from A to B?

If we define a relation  on the set  as  for all  then the relation is

S & R are two relations from  to  given by S=  , R = . Then find the number of elements in