Well defined collections are sets.
Examples: The collection of good cricket players of India is not a set. However, the collection of all good player is a set.
The collection of vowels in English alphabets is a set.
Thus, we can say that every set is a collection, but every collection is not necessarily a set. Only well defined collections are sets.
Answered by Sakshi | 1 year agoFind the symmetric difference A Δ B, when A = {1, 2, 3} and B = {3, 4, 5}.