Question

what is universal set? how an empty set is subset of any set?​

Answer 1

Answer:

A universal set is a set which contains all the elements or objects of other sets, including its own elements. It is usually denoted by the symbol 'U'.

Answer 2

Answer:

hope it is useful make brain mark

Step-by-step explanation:

There is a complement of set for every set. ... That means where Universal set consists of a set of all elements, the empty set contains no elements of the subsets. The empty set is also called a Null set and is denoted by '{}'.