Q.4 Consider a binary operation ∗ on the set \{1, 2, 3, 4, 5\} given by the following
multiplication table (Table 1.2).

(i) Compute (2 * 3) * 4 and 2 * (3 * 4)

(Hint: use the following table)

Answers (1)

(i)

(2 * 3) * 4 = 1*4 =1

 2 * (3 * 4) = 2*1=1

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