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Derivative Question

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  1. Jan 5, 2017 #1
    1. The problem statement, all variables and given/known data

    I've tried to search this up but to no avail. How am I suppose to solve this:

    d2y/dx3


    2. Relevant equations
    N/A

    3. The attempt at a solution

    Here's what I think I need to do:

    1: Square and cube y and x respectively.
    2: Find the second and third derivative of y and x respectively.

    Thank you.
     
  2. jcsd
  3. Jan 5, 2017 #2

    jedishrfu

    Staff: Mentor

    This looks like a typo, I think you need to ask your teacher what they want here or of course you could compute the ##d^2y/dx^2## and the ##d^3y/dx^3##

    The superscripts aren't powers and these aren't fractions of differentials.

    The notation means:
    - 2nd derivative of y with respect to x for ##d^2y/dx^2## and
    - 3rd derivative of y with respect to x for ##d^3y/dx^3##

    Check to see if your book has an errata sheet online which would indicate whether its a typo that is if this came from your book otherwise check with your teacher.
     
    Last edited: Jan 5, 2017
  4. Jan 5, 2017 #3
    Human error on my behalf. I mistype it. But yeah, thank you. I'm self-teaching (as scary enough as it is, ha ha) so no teacher besides myself

    So basically it means to take the second (or nth) derivative? Thank you. .
     
  5. Jan 5, 2017 #4

    jedishrfu

    Staff: Mentor

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