Suppose f(1) = 2, f '(1) = 3 and f '(2) =4, then f^-1(2)=?

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SUMMARY

The problem states that f(1) = 2, f '(1) = 3, and f '(2) = 4, and asks for f^-1(2). The key to solving this is understanding the definition of the inverse function, f^-1(x), which states that f^-1(f(x)) = x. Given that f(1) = 2, it follows that f^-1(2) = 1. The derivatives provided are extraneous for this specific question.

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Homework Statement



Suppose f(1) = 2, f '(1) = 3 and f '(2) =4, then f^-1(2)=?

Homework Equations




I don't even know what eqn to use

The Attempt at a Solution


Knowing that I don't know what eqn to use, how do i solve this
just plseas give me direct steps on how to answer it..
 
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You don't need the derivatives to solve this problem. Presumably those are for another part of the problem.

Hint: What is f^{-1}(f(x))?
 
You need to learn the definition of f^{-1}(x).
 
Is this all the problem?

There appears to be redundant, or rather irrelevant, information there.
 

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