Thread: using the Laplace transform to solve...

man these problems are long but here goes...

ok i am not sure what im doing wrong but my partial fraction that I am getting is not giving me the right answer...one i have 7 terms and the book has 4 terms in its answer.

y(0)=0, y'(0)=0 , y''(0)=1

after making the substitutions i got:





i was hoping someone could tell me where i went wrong....

thanks

sorry here is the problem...

Hmm. Here's what I get:



You can use the Heaviside cover-up method to get the constants, and then fire away with the inverse. As you can see, there are only 4 terms.

Does that help?

ok i didnt get the 2s+3 let me go back and add that and finish working out the problem. thanks!

You're welcome, as always.