If A = {letters of the word CRICKET} and B = {letters of the word HOCKEY}, then A and B are ___.
equivalent sets
A={Letters of the word CRICKET}
⇒A={C, R, I, K, E, T}
⇒n(A)=6
B={Letters of the word HOCKEY}
⇒B={H,O,C,K,E,Y}
⇒n(B)=6
Thus, n(A)=n(B).
⇒ A and B are equivalent sets.
A and B are not disjoint as A∩B={C,K,E}≠ϕ.