Question

A = set of even numbers, BY = Set of odd numbers then represent AUB through Venn diagram.

Answer 1

A =(2,4,6,8,10..............)
BY=(1,3,5,7.................)
then A union B= (1,2,3,4,5,6,7,8,9,10.............)

Answer 2

So A = {2,4,6, . . . }

     B = {1,3,5, . . . }

so AUB = {1,2,3,4,5,. . . }