If A = {1, 2, 4},

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Question:
If A = {1, 2, 4}, B = {2, 4, 5} and C = {2, 5}, write (A − C) × (B − C).

Solution:

A = {1, 2, 4}, B = {2, 4, 5} and C = {2, 5}

Now,

(A − C) = {1, 4}

(B − C) = {4}

Thus, we have:

(A − C) × (B − C) = {(1, 4), (4, 4)}