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Math Help - If f is a differentialbe function, find an expression for the derivative of each of

  1. #1
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    Red face If f is a differentialbe function, find an expression for the derivative of each of

    If f is a differentialbe function, find an expression for the derivative of each of the following function :

    a) y= (x^2)f(x)
    b) y=(x^2)/f(x)

    c) y=(1+xf(x))/(x^(1/2))
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  2. #2
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    You can use the product rule for the first, the quotient rule for the second, and a combination of the two for the third. Here is the first:

    1) y = (x^2)*f(x)

    y' = (2x)*f(x) + (x^2)*f '(x)

    (I made the space so you could tell it was the derivative) I would do the others, but I don't have the time. I hope this helps, though.
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