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    lara12's Avatar
    lara12 Posts: 11, Reputation: 1
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    #1

    Feb 25, 2009, 08:56 PM
    Differentiate the function
    Determine d2y
    ----- for y=3x+2
    dx^2 ------
    5x-8
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Feb 26, 2009, 05:34 AM

    Here's a link that explains what differentiation is and how to do it.

    Differentiation (Finding Derivatives)

    In particular, this link shows how to differentiate polynomials:

    5. Derivatives of Polynomials
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #3

    Feb 27, 2009, 05:37 AM
    Your post is a little discombobulated. I assume you want to find the second derivative of



    We can try the quotient rule.





    Now, find the derivative of that and you have it.

    You could even use the product rule by rewriting as

    May be a little easier.
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