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Please help me in finding a solution

  1. Apr 6, 2010 #1
    find : E[tex]\subseteqR[/tex]

    f : E[tex]\rightarrowR[/tex]

    1_1 , onto , contonuo

    such that

    f[tex]^{}-1[/tex] : f(E) [tex]\rightarrowR[/tex]

    is not continows

    Please help me in finding a solution
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Apr 6, 2010 #2


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    Homework Helper

    Can you repost it such that it's more readable please?
  4. Apr 6, 2010 #3
    Perhaps you meant:

    Let [itex]E\subseteq \mathbb{R}[/itex]. Find a function [itex]f : E\rightarrow \mathbb{R}[/itex] that is one-to-one, onto, and continuous such that [itex]f^{-1} : f(E) \rightarrow \mathbb{R}[/itex] is not continuous.

    Is this your question?
  5. Apr 6, 2010 #4
    Yes, this is my question:smile:
  6. Apr 6, 2010 #5
    what about e^x?
  7. Apr 6, 2010 #6


    Staff: Mentor

    Why don't you just type your question? All of the stuff you are doing with special fonts, centering, and font size is distracting.
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