Let `@` be a binary operation on `QQ`, the set of rational numbers, defined by `a@b=(1)/(8)ab` for
Channel: Doubtnut
Date: 2020-05-09

Let `@` be a binary operation on `QQ`, the set of rational numbers, defined by `a@b=(1)/(8)ab` for all `a,binQQ`. Prove that `@` is commutive as well as associative.