Help undetermined coefficients

  • #1
i solved homogenous but
y"+y'+4y = 2sinh(T)
is giving me trouble
also have a hint
sinh t = (e^t - e^-t)/2

also my "guess" was
aE^t +Be^-t=Y
maybe my guess was wrong?
 

Answers and Replies

  • #2
607
0
That should be fine.
 
  • #3
HallsofIvy
Science Advisor
Homework Helper
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Why are you asking? Have you tried putting that into the equation? If you are used to working with hyperbolic functions directly, you can also use y= C cosh(t)+ D sinh(t).
 
  • #4
tried this guess but yield wrong answer guess ill do a few more times thanks all
 
  • #5
607
0
In the "Homework" forum, you can put in your work with wrong answer, and ask where you went wrong.
 

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