1. Jun 8, 2008 #1

   th3plan

   

   1. The problem statement, all variables and given/known data
   
   Find the d^2 y /d^2 x for y= 3t^3+4t and x=6t^4+7t
   
   I just made one up similiar to what my teacher gave to do
   
   3. The attempt at a solution
   
   Dont know how to do it, i know i need 2nd derivatives but what then help i need please

    

   th3plan, Jun 8, 2008
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3. Jun 8, 2008 #2

   Ed Aboud

   

   Well first off find [tex] \frac{dy}{dt} [/tex] and [tex] \frac{dx}{dt} [/tex] and then try go at it from there. Use your knowledge of parametric differentiation.

    

   Ed Aboud, Jun 8, 2008

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