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Math Help - Hyperbolic Functions

  1. #1
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    Hyperbolic Functions

    I'm having an issue with Hyperbolic Functions!
    I have read through examples on proving hyperbolic identities here but I am struggling to relate it to this equation:

    cosh2x=2cosh^2x-1

    i know coshx = (e^x+e^-x)/2

    I'm also a little weak on exponentional and logarithm

    cheers
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  2. #2
    MHF Contributor
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    Quote Originally Posted by bogan View Post
    I'm having an issue with Hyperbolic Functions!
    I have read through examples on proving hyperbolic identities here but I am struggling to relate it to this equation:

    cosh2x=2cosh^2x-1

    i know coshx = (e^x+e^-x)/2

    I'm also a little weak on exponentional and logarithm

    cheers
    Try starting on the RHS and simplifying until you arrive at the LHS
    Last edited by dwsmith; May 20th 2010 at 08:59 PM.
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