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Matrices with hyperbolic functions

  1. Feb 24, 2014 #1
    1. The problem statement, all variables and given/known data

    I thought it would be better to attach it.

    2. Relevant equations



    3. The attempt at a solution

    So for the first part I've found that A^2=the Identity matrix, but from there I don't have much of an idea on how to substitute that into the equation for M and end up with sinh and cosh in my expression. Please help
     

    Attached Files:

  2. jcsd
  3. Feb 24, 2014 #2

    Dick

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    Look up the taylor series of sinh and cosh and compare them with the infinite series you get using that A^2=I.
     
  4. Feb 24, 2014 #3
    Thanks I've got it now! :)
     
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