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Second-order differential equation and conditions

  1. Mar 30, 2017 #1
    1. The problem statement, all variables and given/known data
    Hy guys I am have a problem with the last part of this question. part d), ii) I get the general formal which I have displayed below, but what I done understand is if I take the limits as show in ii) I get ##0=\
    \infty## which obviously I am doing something wrong. Have I misinterpreted what they are say as y tends to 0 as x tends. Could anyone give me some advice it would be much appreciated, thanks in advance.
    upload_2017-3-30_16-35-20.png


    2. Relevant equations


    3. The attempt at a solution
    ##y=c_1e^{2x}+c_2e^{-3x}-e^{-x}##
     

    Attached Files:

  2. jcsd
  3. Mar 30, 2017 #2

    Mark44

    Staff: Mentor

    What equation did you get for question d) part i)? Part ii) is essentially saying that ##\lim_{x \to \infty} c_1e^{2x} + c_2e^{-3x} - e^{-x} = 0##. What are the values of the two constants so that this can happen?
     
  4. Mar 31, 2017 #3
    @Mark44 I see now thank you as soo as u put in that form and do each lim seperatly I saw what was going on. Much apprectied.
     
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