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Math Help - first shift theorem .

  1. #1
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    first shift theorem .

    stuck on this question

    determine

    laplace -1 (s+3 / s^2 +16s +89 )

    ans should be e^-8t cos5t - sin5t

    ans i got was e^-8t cost 5t - 16/5 sin5t

    sorry dont know how to write out in equation format . thanks for any help .
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  2. #2
    A Plied Mathematician
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    How did you get your answer? What were your steps?
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  3. #3
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    Followed steps threw a examples book I got at uni , on my mobile atm so can't type it all out atm
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  4. #4
    A Plied Mathematician
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    Ok. Well, when you get to the point where you can type out all your steps for me, I'll be happy to take a look and see what's going on.
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