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Haha operations of e

  1. Jan 27, 2009 #1
    hahaha uhhhh operations of e

    1. The problem statement, all variables and given/known data
    i'm reading this online math help thing, and i can't seem to memorize how/why this is


    2. Relevant equations
    [​IMG]
    how did they get this?


    edit* how did they get the answer from the left to the right side of the arrow?
    3. The attempt at a solution
    i know this is prob. the beginner stuff, but i forgot this from a long time ago. and don't worry, this is only one step of the equation, not the whole answer.

    Thanks!
     
  2. jcsd
  3. Jan 27, 2009 #2

    gabbagabbahey

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    Homework Helper
    Gold Member

    Re: hahaha uhhhh operations of e

    Is there a specific step(s) that you don't understand? All they are really doing is integrating both sides of the equation with respect to x and then isolating v(x) after.
     
  4. Jan 27, 2009 #3
    Re: hahaha uhhhh operations of e

    They multiplied both sides by [tex] x^4 [/tex]
     
  5. Jan 27, 2009 #4
    Re: hahaha uhhhh operations of e

    yeah, i got the integrating part, but how come in the next step, it went from x^-4 to x^4?


    thanks!
     
  6. Jan 27, 2009 #5
    Re: hahaha uhhhh operations of e

    I just told you, they multiplied both sides by x^4 ... and x^(-4) * x^4 = 1
     
  7. Jan 27, 2009 #6
    Re: hahaha uhhhh operations of e

    oh haha yeah, thanks!


    I was talking to "gabbagabbahey" in my last response though..
     
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