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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- Dec 9th 2010, 09:59 AMnejamfirst 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 . - Dec 9th 2010, 10:43 AMAckbeet
How did you get your answer? What were your steps?

- Dec 9th 2010, 11:13 AMnejam
Followed steps threw a examples book I got at uni , on my mobile atm so can't type it all out atm

- Dec 9th 2010, 11:20 AMAckbeet
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.