Answer :

(i) A = {2, 3}

B = {x: x is a solution of x

^{2}+ 5x + 6 = 0} = {-2, -3}

Therefore the above pair are not equal sets.

(ii) A = {x:x is a letter in the word FOLLOW} = {F, O, L, W}

B = {y:y is a letter in the word WOLF} = {W, O, L, F}

Therefore the above pair are equal sets.

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