Question

Check * on the set of real numbers r is defined by a*b =√ab is a binary operation

Answer 1

Answer:

ok sir

Step-by-step explanation:

I will try but hua nahi thik hain .ssseexxx

Answer 2

Step-by-step explanation:

The essence to prove ∗ a binary operation is to show that ∗:S×S→S a map. In your question since ∗ is defined using multiplication and addition of R which are binary operations, we have ∗:S×S→R a map. As S=R∖{−1}, it suffices to show that the range of ∗ is S