1.

If f:{x|xge1,"x" inR}rarr{x|xge2,x inR} f(x) =x+1/(x)then f^(-1)(x) = .........

Answer»

`(X+SQRT(x^2-4))/2`
`(x-sqrtx^2-4)/2`
`(x^2+1)/x`
`sqrt(x^2-4)`

SOLUTION :N/A


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