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Math Help - Find the derivative

  1. #1
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    Find the derivative

    Hi guys, Could someone tell me if this is correct?

    Find the derrivative of the function:
     (x^2-1)/(2x-3)
    (This is a fraction but i can't figure out the forum codes)

    The answer I get after working this out is:
     -2/(2x-3)
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  2. #2
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    Re: Find the derivative

    It is simple just use the quotient rule Find the derivative-quotient.png
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  3. #3
    No one in Particular VonNemo19's Avatar
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    Re: Find the derivative

    Look at it likethis:

    Product:

    \frac{dy}{dx}\left[(x^2-1)(2x-3)^{-1}\right]

    =\overbrace{(x^2-1)(-1)(2x-3)^{-2}(2)}^{\text{first times derivative of second}}\underbrace{+}_{\text{plus}}\overbrace{(2x-3)^{-1}(2x)}^{\text{second times drivative of first}}
    Last edited by VonNemo19; January 28th 2013 at 08:43 PM.
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