Which of the following are pairs of equal sets?
C = set of letters in the word, ‘CATARACT.’
D = set of letters in the word, ‘TRACT.’
Equal Sets = Two sets A and B are said to be equal if they have exactly the same elements & we write A = B
We have,
C = set of letters in the word, ‘CATARACT.’
C = {C, A, T, R}
and D = set of letters in the word, ‘TRACT.’
D = {T, R, A, C}
Here, C = D because the elements in both the sets are equal. The repetition of elements in a set does not change a set.
Thus, C and D are equal sets.