Q

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

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

(ii) Is ∗ commutative?

(Hint: use the following table)

For every $a,b \in\{1, 2, 3, 4, 5\}$ , we have $a*b = b*a$. Hence it is commutative.