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Homework Help: Power & Summation Rules

  1. Jun 12, 2004 #1
    Is this simplified?

    Use the power rule and the summation rule to find f ' (x) and simplify where possible

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

    f ' (x) = d/dt(((2x^3)/5) - x^2 +3/8) = ((6x^2)/5) - 2x

    Is this the right answer?
  2. jcsd
  3. Jun 12, 2004 #2
    Looks fine from here.
  4. Jun 13, 2004 #3


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    Staff Emeritus
    Science Advisor
    Gold Member

    Except, it should be d/dx...not d/dt !
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