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Let f:QQ rarr QQ be the function defined...

Let `f:QQ rarr QQ` be the function defined by ,
`f(x)=2x+5`, for all `x in QQ`
Find the function `g: QQ rarr QQ` such that `(g o f) =I_(QQ)`.

Text Solution

Verified by Experts

The correct Answer is:
`g(x)=(1)/(2)(x-5)`
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