Question

let n be the set of natural numbers and the relation r be defined on n such that ,r ={(x,y): y = 2x, x,y belongs to n , now find what. is the do.ain, co domain and range of r ? is this relation a function ?​

Answer 1

Answer:

domain= set of all natural nos.

codomain= set of natural nos.

range= set of all even natural nos.

this relation is a function.because all the elements in first set has its image in the second set.

infact,it is a surjective function.

ie.onto and one one function