Question -
Answer -
(i) A = {2, 3}
B = x2 + 5x + 6 = 0
x2 + 3x + 2x + 6 = 0
x(x+3) + 2(x+3) = 0
(x+3) (x+2) = 0
x = -2 and -3
= {–2, –3}
Since, A and B do not have exactly same elements hence they are not equal.
(ii) Every letter in WOLF
A = {W, O, L, F} = {F, L, O, W}
Every letter in FOLLOW
B = {F, O, L, W} = {F, L, O, W}
Since, A and B have same number of elements which are exactly same, hence they are equal sets.