Question

How to determine whether it is give Union or universal set??

Answer 1

When we collect all elements of two or more sets in one set.... That is universal

Answer 2

Heya mate !!  Here is your answer !!  For example :- A = {1,2,3} B = {2,3,4} U' = {1,2,3,4,5,6}  In this union is  A U B = {1,2,3,4}  Universal set   U' = {1,2,3,4,5,6}  So, union means when we take the elements of all the set except the universal set but universal set is the set which is denoted by either U or U' where we only consider the universal set, other sets are of no use in that.  #Ria ☺☺  Thank you !!  Hope it helps !!