Question

Let the set of English alphabets be the Universal set. The letters of the word ‘LAUGH’ is one set and the letter of the word ‘CRY’ is another set. Can we say that these are two disjoint sets? Observe that intersection of these two sets is empty.

Answer 1

Let A = {L, A, U, G, H} 

B = {C, R, Y} 

Now, 

A ∩ B = φ 

∴ A and B are disjoint sets.