Laplace is trying to kill me

Discussion in 'Homework Help' started by silvrstring, Jul 21, 2008.

  1. silvrstring

    Thread Starter Active Member

    Mar 27, 2008
    Hello everyone.

    Sorry I have not been participating much lately. I am in new courses, and I tend to envelop myself in what I am studying at that moment.

    My last class introduced us to Laplace transforms, and my new class is starting off with them. I thought I had them figured out, but now I am not so sure.

    I have attached my problem, my work, my wrong answer, and the book's answer below. Maybe the the book is wrong (It wouldn't be the first time). I dont know. But I'll doubt myself before the book.

    If anyone knows their Laplace transforms, please take a look at my work. I would like to know where I am going wrong.

  2. Ratch

    New Member

    Mar 20, 2007

    In the third line of your work, you write the Laplace transform of -2x as -2*L(x). It should be -2/(s^2) . Ratch