Question

Let * be a binary operation on Q -{0} is defined by a* b = ab/2 for all a, b belongs to Q -{0} . Prove that * is commutative on Q -{0} .​

Answer 1

Answer:

Let ∗ be a binary operation on N, the set of natural numbers, defined by a∗b=ab for all a,b∈N. Is

′

∗

′

associative on N?

Medium

View solution

>