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Problem with a derivative

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  1. Mar 22, 2017 #1

    Garlic

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    Hello PF,

    1. The problem statement, all variables and given/known data


    I've been having problems with the deriative of a function, although I thought I've done everything right, my solution doesn't match with the right solution. I have no clue what (or if) I've done anything wrong, or simply don't know the tricks I was supposed to use.

    2. Relevant equations + 3. The attempt at a solution

    IMAG1382_1.jpg
     
  2. jcsd
  3. Mar 22, 2017 #2

    Garlic

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    Okay, so it appears, that I haven't correctly derived the function at the beginning, so the problem begins with the first row.
     
  4. Mar 24, 2017 #3
    Foil everything.... Than you're just going to be using the chain rule
     
  5. Mar 24, 2017 #4
    Take the derivative with respect to t
     
  6. Mar 24, 2017 #5

    Garlic

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    Thank you! :smile:
     
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