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Thread: differentiate

  1. January 16th 2007, 12:15 PM #1
    alison
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    Question differentiate

    Can anyone help me with the question i have attached thanks
    Alison
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  2. January 16th 2007, 12:32 PM #2
    galactus
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    What are you having trouble with?. A polynomial is one of the easiest functions to differentiate.
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  3. January 16th 2007, 01:44 PM #3
    topsquark
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    I presume you have learned the power rule?
    f(x) = ax^n means that f'(x) = nax^{n-1}.

    If not then let me know and I'll walk you through this the long way.

    f(x) = 8x^3 + 3x^2 + 5

    f'(x) = 8(3x^2) + 3(2x^1)

    f'(x) = 24x^2 + 6x

    -Dan
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