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

  • Thread starter aizeltine
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Homework Statement



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

Homework Equations




I dont even know what eqn to use

The Attempt at a Solution


Knowing that I dont know what eqn to use, how do i solve this
just plseas give me direct steps on how to answer it..
 

Answers and Replies

  • #2
D H
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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 [itex]f^{-1}(f(x))[/itex]?
 
  • #3
HallsofIvy
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You need to learn the definition of [itex]f^{-1}(x)[/itex].
 
  • #4
epenguin
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Is this all the problem?

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

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