# Are the following

(i) Given: A = {2, 3}, B = {x : x is solution of x2 + 5x + 6 = 0}

Solution of equation x2 + 5x + 6 = 0

x2 + 3x + 2x + 6 = 0

x(x + 3) + 2(x + 3) = 0

(x + 3)(x + 2) = 0

x = {-3,-2}

Let we represent the set B in roaster form:

Set B = {x is solution of x2 + 5x + 6 = 0}={-3,-2}.

And set A ={2,3}

Two set A and B are said to be equal if they have exactly same elements then we say A = B.

Because the elements of set A and B do not have same numbers.

A≠B.

(ii) Given: A = {x : x is a letter in the word FOLLOW},B = {y : y is a letter in the word WOLF}.

Let we represent the set A in roaster form:

Set A = {x : x is a letter in the word FOLLOW}={F,O,L,W}.

Let we represent the set B in roaster form:

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

Two set A and B are said to be equal if they have exactly same elements then we say A = B.

Because elements of set A and B do not have significant order, but A and B have same element.

A=B.

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