 Hi and welcome to the session. I am Asha and I am going to help you with the following question which says write the relation R having ordered this X comma X cube such that X is a prime number less than 10 and roast a phone. So first let us learn what is a relation. Suppose A and B are any two non-empty sets, the relation from A to B is a subset of the Cartesian product of A and B. Cartesian product of A and B is a set of elements X, Y such that X belong to A and Y belong to B. So this is the key idea we are going to use in this problem to define the relation and roast a phone. Let us now start with the solution and we are given a relation R having the ordered pair X comma X cube such that X is a prime number less than 10 that is R in a relation having ordered pair X comma X cube such that X have values 2, 3, 5 and 7. Now when X is equal to 2 then X cube is equal to 8, when X is equal to 3 then X cube is equal to 27 and when X is equal to 5 then X cube is equal to 125 and when X is equal to 7 then X cube is equal to 343. Thus the relation R in the roast a phone can be written as 28, 327, 525 and 7, 343. So this completes the solution hope you enjoyed it take care and have a good day.