[" 15.Q "^(+)" denote the set of all positive rational numbers."],[" If the binary operation a "0." on "Q^(+)" is defined as a "o." b "],[=(ab)/(2)," then the inverse of "3" is "]

QQ^(+) denote the set of all positive raional numbers. If the binary operation @ on QQ^(+) is defined as a@b=(ab)/(2) , then the inverse of 3 is---

Q^+ denote the set of all positive rational numbers. If the binary operation o. on Q^+ is defined as a o.b=(a b)/2, then the inverse of 3 is

Q^+ denote the set of all positive rational numbers. If the binary operation o. on Q^+ is defined as a o.b=(a b)/2, then the inverse of 3 is 4/3 (b) 2 (c) 1/3 (d) 2/3

Q^+ denote the set of all positive rational numbers. If the binary operation . on Q^+ is defined as a.b=(a b)/2, then the inverse of 3 is (a) 4/3 (b) 2 (c) 1/3 (d) 2/3

On the set Q^(+) of all positive rational numbers define a binary operation * on Q^(+) by a * b= (ab)/(3) AA (a,b) in Q^(+) . Then what is the inverse of a in Q^(+) ?

On the set Q^+ of all positive rational numbers if the binary operation * is defined by a * b = 1/4ab for all a,b in Q^+ find the identity element in Q^+ .

On the set Q^(+) of all positive rational numbers a binary operation * is defined by a*b=(ab)/(2) for all a,b in Q^(+). The inverse of 8 is (1)/(8) (b) (1)/(2)(cc)2(d)4

On the set Q^+ of all positive rational numbers a binary operation * is defined by a * b=(a b)/2 for all a ,\ b in Q^+ . The inverse of 8 is (a) 1/8 (b) 1/2 (c) 2 (d) 4

If the binary operation * defined on Q, is defined as a*b=2a+b-ab, for all a*bQ, find the value of 3*4

Q^(+) is the set of all positive rational numbers with the binary operation * defined by a*b=(ab)/(2) for all a,b in Q^(+). The inverse of an element a in Q^(+) is a (b) (1)/(a)( c) (2)/(a) (d) (4)/(a)