 Hello and welcome to the section. In this section we will discuss a question which says that let A be a set of natural numbers less than equal to 5. Let relation R is equal to a set containing the odd appear AB such that AB belongs to A, A is less than B and AB are co-primes. Plot R on a coordinate diagram of A cross A also find the domain and range of R. Now before starting the solution of this question we should know our result. And that is if A and B are co-primes then the GCB B that is the greatest common divisor of A and B is equal to 1. Now this result will work out as a key idea for solving out this question. And now we will start with the solution. Now it is given that A is a set of natural numbers less than equal to 5. So given A is a set of natural numbers less than equal to 5. Therefore in register form A is a set containing the elements 1, 2, 3, 4 and also the relation R is given to us. So given that R consists of those odd appears belongs to A cross A for which A and B are co-primes is less than B. Also A and B belongs to the set A. Now A cross A is odd appears. Now we want to check that in which of these odd appears the first and the second components are co-primes and also the first component is less than the second component. Now using register form which is given a key idea in the odd appear 1, 2, 1 and 2 are co-primes and also 1 is less than 2. And next in the odd appear 1, 3, 1 and 3 are co-primes is also less than 3. Odd appears in which co-primes and also the first component is less than the second component. Is a set containing odd appears 1, 2, 1, 3, 1, 4, 2, 3. Now we will plot these odd appears. Firstly we will plot 1, 2 on the coordinate diagram of A cross A. 2, 2 on the coordinate diagram of A cross A. Next we will plot the odd appear 1. Now this is the odd appear 1, 3 on the coordinate diagram of A on the coordinate diagram of A cross A. So we have plotted R on a coordinate diagram to the domain and range of R is equal to the set containing this odd appears equal to the set containing the elements 1, 2, 3 and 4. Now range at containing the elements 2, 3 given question and that's all for this session. Hope you all have enjoyed the session.