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Math Help - Newton Quotient Law

  1. #1
    s3a
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    Newton Quotient Law

    I am so confused with #11. I did some practice problems with actual numerical values but I'm just not getting this question right.

    Any help would be greatly appreciated!
    Thanks in advance!
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  2. #2
    Eater of Worlds
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    The definition of a derivative gives:

    \lim_{h\to 0}\frac{\frac{2}{x+h-4}-\frac{2}{x-4}}{h}

    Now, use a little algebra to simplify and note that h heads toward 0 and you should be able to answer everything pertaining to that problem.
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  3. #3
    s3a
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    Before I try to solve it from what you told me can you please spot what my mistake is on my current work first?

    Edit: Actually ignore the first attachment. (I changed the file so it's not here anymore anyways). I still have a problem though just not the same kind.
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    Last edited by s3a; September 26th 2009 at 01:31 PM.
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