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Math Help - Help deriving please

  1. #1
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    Help deriving please

    How would you differentiate the following ?
    y=(2x^2-1)(4x^3+x)

    and

    y= (x+5) / (3x^2 -6x)
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by nosh View Post
    How would you differentiate the following ?
    y=(2x^2-1)(4x^3+x)
    Here, apply the product rule: for differentiable functions f and g, we define the derivative of their product as follows:

    (f \cdot g)' = f' \cdot g + f \cdot g'

    now try it


    y= (x+5) / (3x^2 -6x)
    apply the quotient rule: for differentiable functions f and g we define the derivative of their ratio as follows:

    \left( \frac fg \right)' = \frac {f'g - fg'}{g^2}

    now try it
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