Let × be a binary operation on Q, defined by a = 3ab 5 is: 1. Com… - Vidyadip

Question

Let × be a binary operation on Q, defined by $\text{a}\times\text{b}=\frac{3\text{ab}}{5}$ is:

Commutative.
Associative.
Both (a) and (b).
None of these.

✓

Answer

Both (a) and (b).

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