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Question
If f : `(1, infty) → (2, infty) "is given by f"("x") = "x" + 1/"x"`, then f-1 equals to ____________.
Options
`("x" + sqrt("x"^2 - 4))/4`
`"x"/(1 + "x"^2)`
`("x" - sqrt("x"^2 - 4))/2`
`1 + sqrt("x"^2 - 4)`
MCQ
Fill in the Blanks
Solution
If f : `(1, infty) → (2, infty) "is given by f"("x") = "x" + 1/"x"`, then f-1 equals to `underline(("x" + sqrt("x"^2 - 4))/4)`.
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Inverse of a Function
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