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QQ^(+) denote the set of all positive ra...

`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---

A

`(4)/(3)`

B

2

C

`(1)/(3)`

D

`(2)/(3)`

Text Solution

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The correct Answer is:
A
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