(1) Define an operation * on Q as follows: a*b = a+b2 :a,b ∈ Q. Examine the closure, commutative, and associative properties satisfied by * on Q. (2) Define an operation * on as follows: a*b = a+b2: a,b ∈Q. Examine the existance of identity and the existance of inverse for the operation * on Q..

(1) Define an operation * on Q as follows: ab = $(\frac{a + b}{2})$ :a,b $\in$ Q. Examine the closure, commutative, and associative properties satisfied by on Q.
(2) Define an operation * on as follows: ab = $(\frac{a + b}{2})$ : a,b $\in$ Q. Examine the existance of identity and the existance of inverse for the operation on Q..

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.