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Math Help - derivitive (quotient rule)

  1. #1
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    Jul 2010
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    15

    derivitive (quotient rule)

    Not sure what to do next:

    sorry for bad quality pic. took on my phone



    edit: nvm i got it. i made an error with the 1. it should be a 4

    edit: so now i have

    -4(x^2-1)/(x^2+1)^2

    what to do next? is this the final answer?
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  2. #2
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    Sep 2010
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    Looks final to me.
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