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Math Help - Calculus Derivatives

  1. #1
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    Question Calculus Derivatives

    Find (a) dy/dx and (b) (d^2y)/(dx^2), where y=x^4-5x^3+9x-15
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  2. #2
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    Alright so part (a) would be...
    4x3-15x2+9
    I'm just not sure what they're asking for in part b?
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  3. #3
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    Quote Originally Posted by SoYah View Post
    Alright so part (a) would be...
    4x3-15x2+9
    I'm just not sure what they're asking for in part b?
    Differentiate the derivavtive you just found.
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