Mark the correct alternative in the following: A relation R is defined from {2, 3, 4, 5} to {3, 6, 7, 10} by : xRy x is relatively prime to is relatively prime to y . Then, domain of R is

Question

Philoid · Accepted Answer

Relatively prime numbers are those numbers which have only 1 as the common factor.

So, according to this definition we get to know that (2, 3), (2, 7), (3, 7), (3, 10), (4, 3), (4, 7), (5, 3), (5, 6) ,(5, 7) are relatively prime.

So, R ={(2, 3), (2, 7), (3, 7), (3, 10), (4, 3), (4, 7), (5, 3), (5, 6) ,(5, 7)}.

Therefore, Domain of R is the values of x or the first elemenyt of the ordered pair.

So, Domain = {2, 3, 4, 5}.

So, option D is correct.

Mark the correct alternative in the following:A relation R is defined from {2, 3, 4, 5} to {3, 6, 7, 10} by :xRyx is relatively prime to is relatively prime to y. Then, domain of R is

Mark the correct alternative in the following:
A relation R is defined from {2, 3, 4, 5} to {3, 6, 7, 10} by :xRyx is relatively prime to is relatively prime to y. Then, domain of R is