the identity elements of the group of all positive rational numbers under the composition of a*n=ab/2 is

Question

the identity elements of the group of all positive rational numbers under the composition of a*n=ab/2 is​

Madelyn · Answer

Step-by-step explanation:   Let Q+ be the set of all positive rational numbers. Let * be an operation on Q+ defined by a * b = (ab/2) ∀ a,b ∈ Q+. Then, the identity element.

Piper

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7. Which of the following is equivalent to 5% ?
(i) 0.005 (ii) 5
(iii) 0.05
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for the numbers a,d,c,d if a/b =c/b =d/c,show that the numbers a,b,c,d arw in G.P

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