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Homework Help: Give the error formula for y=x5

  1. Dec 7, 2008 #1
    1. The problem statement, all variables and given/known data

    i have no idea what the heck this means :confused: :

    Give the error formula for y=x5


    Can someone help me?
     
  2. jcsd
  3. Dec 7, 2008 #2

    mgb_phys

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    edit- sorry misread what you were asking.

    If you multiply two numbers then you add their fractional errors.
     
    Last edited: Dec 7, 2008
  4. Dec 7, 2008 #3

    turin

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    If this is a textbook problem, what is the textbook? I've never heard of "the error formula" for a mathematical equation.
     
  5. Dec 8, 2008 #4
    so what should i write for the answer, because i am clueless right now.
     
  6. Dec 8, 2008 #5

    LowlyPion

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    You apply the multiplication rule for propagating uncertainties.

    Y = x5

    Any ideas about what multiplying may be going on?

    And if the rule for p*q is δp/p + δq/q

    how might you apply that to x5?
     
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