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Differentiation of a quotient

  • 19-09-2015 11:04AM
    #1
    Hedgecutter
    Registered Users, Registered Users 2 Posts: 1,065 ✭✭✭


    Trying to simplify this problem. Getting stuck, wondered if it's correct so far.


Comments

  • #2
    Hedgecutter
    Registered Users, Registered Users 2 Posts: 1,065 ✭✭✭Hedgecutter


    Wondered if I'm correct in Q7 for du/dxo


  • #3
    MathsManiac
    Registered Users, Registered Users 2 Posts: 1,595 ✭✭✭MathsManiac


    Both look ok to me.
    (2nd one isn't finished, of course. But your du/dx is correct.)


  • #4
    Hedgecutter
    Registered Users, Registered Users 2 Posts: 1,065 ✭✭✭Hedgecutter


    Thanks. I'll finish the second one. Can the first be simplified ?


  • #5
    TheBody
    Registered Users, Registered Users 2 Posts: 5,638 ✭✭✭TheBody


    Hedgecutter wrote: »
    Thanks. I'll finish the second one. Can the first be simplified ?

    You can multiply the constants but that's about it.

    Another small thing, in the first one you have used implies symbols (the double arrow yokes!) where you should have = signs.

    I know that may sound like I'm busting your balls over nothing but it's important to learn how to write maths correctly.

    Keep up the good work!!


  • #6
    Hedgecutter
    Registered Users, Registered Users 2 Posts: 1,065 ✭✭✭Hedgecutter


    TheBody wrote: »
    You can multiply the constants but that's about it.

    Another small thing, in the first one you have used implies symbols (the double arrow yokes!) where you should have = signs.

    I know that may sound like I'm busting your balls over nooothing but it's important to learn how to write maths correctly.

    Keep up the good work!!

    Thanks for the feedback. The more i tidy things up the better for myself.

    Using John bird higher engineering mathematics. Trying to get my answers the same but some times I can't. Don't think I need to for exams, but no harm trying.


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